Merge branch 'master' into cht-td

2017-02-03 19:56:52 +01:00 · 2017-02-03 19:56:52 +01:00 · 02142e3a57
commit 02142e3a57
parent e874df5155 312aa72747
85 changed files with 1178 additions and 726 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@ -73,6 +73,11 @@ name = "ansi_term"
 version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "antidote"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "app_dirs"
 version = "1.1.1"
@ -285,6 +290,11 @@ name = "dtoa"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "dtoa"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "either"
 version = "1.0.2"
@ -784,7 +794,8 @@ dependencies = [
 "futures-cpupool 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "mime 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "reqwest 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "reqwest 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
@ -901,6 +912,35 @@ dependencies = [
 "vecio 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "hyper"
 version = "0.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "httparse 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "mime 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "num_cpus 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc_version 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
 "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 "traitobject 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "hyper-native-tls"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "hyper 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)",
 "native-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "idna"
 version = "0.1.0"
@ -962,6 +1002,11 @@ name = "itoa"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "itoa"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "jsonrpc-core"
 version = "5.0.0"
@ -1522,7 +1567,7 @@ dependencies = [
 [[package]]
 name = "parity-ui-precompiled"
 version = "1.4.0"
-source = "git+https://github.com/ethcore/js-precompiled.git#cb8dc7c61dd7976f062863182a1c6d77ba319a36"
+source = "git+https://github.com/ethcore/js-precompiled.git#416d00db677b8219f7548bb4dfa2f25c4b19f36e"
 dependencies = [
 "parity-dapps-glue 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@ -1720,15 +1765,15 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "reqwest"
-version = "0.2.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "hyper 0.9.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)",
 "hyper-native-tls 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "native-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.9.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.8.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 0.9.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_urlencoded 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde_urlencoded 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@ -1914,6 +1959,11 @@ name = "serde"
 version = "0.8.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "serde"
 version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "serde_codegen"
 version = "0.8.19"
@ -1946,11 +1996,24 @@ dependencies = [
 ]
 [[package]]
-name = "serde_urlencoded"
+name = "serde_json"
-version = "0.3.0"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 0.8.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dtoa 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "itoa 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "num-traits 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde 0.9.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 [[package]]
 name = "serde_urlencoded"
 version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "dtoa 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "itoa 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde 0.9.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@ -2410,6 +2473,7 @@ dependencies = [
 "checksum advapi32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e06588080cb19d0acb6739808aafa5f26bfb2ca015b2b6370028b44cf7cb8a9a"
 "checksum aho-corasick 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "67077478f0a03952bed2e6786338d400d40c25e9836e08ad50af96607317fd03"
 "checksum ansi_term 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1f46cd5b1d660c938e3f92dfe7a73d832b3281479363dd0cd9c1c2fbf60f7962"
 "checksum antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "34fde25430d87a9388dadbe6e34d7f72a462c8b43ac8d309b42b0a8505d7e2a5"
 "checksum app_dirs 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b7d1c0d48a81bbb13043847f957971f4d87c81542d80ece5e84ba3cba4058fd4"
 "checksum arrayvec 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)" = "16e3bdb2f54b3ace0285975d59a97cf8ed3855294b2b6bc651fcf22a9c352975"
 "checksum aster 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)" = "07d344974f0a155f091948aa389fb1b912d3a58414fbdb9c8d446d193ee3496a"
@ -2438,6 +2502,7 @@ dependencies = [
 "checksum deque 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1614659040e711785ed8ea24219140654da1729f3ec8a47a9719d041112fe7bf"
 "checksum docopt 0.6.80 (registry+https://github.com/rust-lang/crates.io-index)" = "4cc0acb4ce0828c6a5a11d47baa432fe885881c27428c3a4e473e454ffe57a76"
 "checksum dtoa 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0dd841b58510c9618291ffa448da2e4e0f699d984d436122372f446dae62263d"
 "checksum dtoa 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5edd69c67b2f8e0911629b7e6b8a34cb3956613cd7c6e6414966dee349c2db4f"
 "checksum either 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "3d2b503c86dad62aaf414ecf2b8c527439abedb3f8d812537f0b12bfd6f32a91"
 "checksum elastic-array 0.6.0 (git+https://github.com/ethcore/elastic-array)" = "<none>"
 "checksum env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "aba65b63ffcc17ffacd6cf5aa843da7c5a25e3bd4bbe0b7def8b214e411250e5"
@ -2455,13 +2520,16 @@ dependencies = [
 "checksum hpack 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3d2da7d3a34cf6406d9d700111b8eafafe9a251de41ae71d8052748259343b58"
 "checksum httparse 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "46534074dbb80b070d60a5cb8ecadd8963a00a438ae1a95268850a7ef73b67ae"
 "checksum hyper 0.10.0-a.0 (git+https://github.com/ethcore/hyper)" = "<none>"
 "checksum hyper 0.10.4 (registry+https://github.com/rust-lang/crates.io-index)" = "220407e5a263f110ec30a071787c9535918fdfc97def5680c90013c3f30c38c1"
 "checksum hyper 0.9.14 (registry+https://github.com/rust-lang/crates.io-index)" = "bcb3fc65554155980167fb821d05c7c66177f92464976c0b676a19d9e03387a7"
 "checksum hyper-native-tls 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "afe68f772f0497a7205e751626bb8e1718568b58534b6108c73a74ef80483409"
 "checksum idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1053236e00ce4f668aeca4a769a09b3bf5a682d802abd6f3cb39374f6b162c11"
 "checksum igd 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c8c12b1795b8b168f577c45fa10379b3814dcb11b7ab702406001f0d63f40484"
 "checksum isatty 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7408a548dc0e406b7912d9f84c261cc533c1866e047644a811c133c56041ac0c"
 "checksum itertools 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)" = "086e1fa5fe48840b1cfdef3a20c7e3115599f8d5c4c87ef32a794a7cdd184d76"
 "checksum itertools 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)" = "d95557e7ba6b71377b0f2c3b3ae96c53f1b75a926a6901a500f557a370af730a"
 "checksum itoa 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ae3088ea4baeceb0284ee9eea42f591226e6beaecf65373e41b38d95a1b8e7a1"
 "checksum itoa 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "91fd9dc2c587067de817fec4ad355e3818c3d893a78cab32a0a474c7a15bb8d5"
 "checksum jsonrpc-core 5.0.0 (git+https://github.com/ethcore/jsonrpc.git)" = "<none>"
 "checksum jsonrpc-http-server 7.0.0 (git+https://github.com/ethcore/jsonrpc.git)" = "<none>"
 "checksum jsonrpc-ipc-server 1.0.0 (git+https://github.com/ethcore/jsonrpc.git)" = "<none>"
@ -2536,7 +2604,7 @@ dependencies = [
 "checksum rayon 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "655df67c314c30fa3055a365eae276eb88aa4f3413a352a1ab32c1320eda41ea"
 "checksum regex 0.1.68 (registry+https://github.com/rust-lang/crates.io-index)" = "b4329b8928a284580a1c63ec9d846b12f6d3472317243ff7077aff11f23f2b29"
 "checksum regex-syntax 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "841591b1e05609a643e3b4d0045fce04f701daba7151ddcd3ad47b080693d5a9"
-"checksum reqwest 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "83186fee0d4dbeb95e610b77b05b05cf5b31703dd375222acb74c3dff4be957c"
+"checksum reqwest 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3bef9ed8fdfcc30947d6b774938dc0c3f369a474efe440df2c7f278180b2d2e6"
 "checksum rocksdb 0.4.5 (git+https://github.com/ethcore/rust-rocksdb)" = "<none>"
 "checksum rocksdb-sys 0.3.0 (git+https://github.com/ethcore/rust-rocksdb)" = "<none>"
 "checksum rotor 0.6.3 (git+https://github.com/ethcore/rotor)" = "<none>"
@ -2555,10 +2623,12 @@ dependencies = [
 "checksum semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ae2ff60ecdb19c255841c066cbfa5f8c2a4ada1eb3ae47c77ab6667128da71f5"
 "checksum semver-parser 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e88e43a5a74dd2a11707f9c21dfd4a423c66bd871df813227bb0a3e78f3a1ae9"
 "checksum serde 0.8.19 (registry+https://github.com/rust-lang/crates.io-index)" = "58a19c0871c298847e6b68318484685cd51fa5478c0c905095647540031356e5"
 "checksum serde 0.9.5 (registry+https://github.com/rust-lang/crates.io-index)" = "4d8f810025e9d09c4eaa49c16eaf878f34a947889e878cd7d3b5bef3197cc119"
 "checksum serde_codegen 0.8.19 (registry+https://github.com/rust-lang/crates.io-index)" = "ce29a6ae259579707650ec292199b5fed2c0b8e2a4bdc994452d24d1bcf2242a"
 "checksum serde_codegen_internals 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "59933a62554548c690d2673c5164f0c4a46be7c5731edfd94b0ecb1048940732"
 "checksum serde_json 0.8.4 (registry+https://github.com/rust-lang/crates.io-index)" = "3f7d3c184d35801fb8b32b46a7d58d57dbcc150b0eb2b46a1eb79645e8ecfd5b"
-"checksum serde_urlencoded 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "53d4ebaa8d1d4f90d1b63dfca81ccd98ac20e1e479dbae393cbaf60f6fecd8d8"
+"checksum serde_json 0.9.4 (registry+https://github.com/rust-lang/crates.io-index)" = "fea48f4d4df4e620e3c81fd2bf28c93dd0d266361a76bac4f254b71f0e13f3cd"
 "checksum serde_urlencoded 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a81f15da4b9780e1524697f73b09076b6e42298ef673bead9ca8f848b334ef84"
 "checksum sha1 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cc30b1e1e8c40c121ca33b86c23308a090d19974ef001b4bf6e61fd1a0fb095c"
 "checksum shell32-sys 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "72f20b8f3c060374edb8046591ba28f62448c369ccbdc7b02075103fb3a9e38d"
 "checksum siphasher 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5c44e42fa187b5a8782489cf7740cc27c3125806be2bf33563cf5e02e9533fcd"
--- a/ethcore/light/src/client/header_chain.rs
+++ b/ethcore/light/src/client/header_chain.rs
@ -214,6 +214,7 @@ impl HeaderChain {
 	pub fn get_header(&self, id: BlockId) -> Option<Bytes> {
 		match id {
 			BlockId::Earliest | BlockId::Number(0) => Some(self.genesis_header.clone()),
 			BlockId::Latest if self.headers.read().is_empty() => Some(self.genesis_header.clone()),
 			BlockId::Hash(hash) => self.headers.read().get(&hash).map(|x| x.to_vec()),
 			BlockId::Number(num) => {
 				if self.best_block.read().number < num { return None }
--- a/ethcore/light/src/client/mod.rs
+++ b/ethcore/light/src/client/mod.rs
@ -21,8 +21,9 @@ use ethcore::block_status::BlockStatus;
 use ethcore::client::ClientReport;
 use ethcore::ids::BlockId;
 use ethcore::header::Header;
 use ethcore::views::HeaderView;
 use ethcore::verification::queue::{self, HeaderQueue};
-use ethcore::transaction::PendingTransaction;
+use ethcore::transaction::{PendingTransaction, Condition as TransactionCondition};
 use ethcore::blockchain_info::BlockChainInfo;
 use ethcore::spec::Spec;
 use ethcore::service::ClientIoMessage;
@ -34,6 +35,7 @@ use util::{Bytes, Mutex, RwLock};
 use provider::Provider;
 use request;
 use time;
 use self::header_chain::HeaderChain;
@ -110,7 +112,11 @@ impl Client {
 		let best_num = self.chain.best_block().number;
 		self.tx_pool.lock()
 			.values()
-			.filter(|t| t.min_block.as_ref().map_or(true, |x| x <= &best_num))
+			.filter(|t| match t.condition {
 				Some(TransactionCondition::Number(ref x)) => x <= &best_num,
 				Some(TransactionCondition::Timestamp(ref x)) => *x <= time::get_time().sec as u64,
 				None => true,
 			})
 			.cloned()
 			.collect()
 	}
@ -135,6 +141,7 @@ impl Client {
 			genesis_hash: genesis_hash,
 			best_block_hash: best_block.hash,
 			best_block_number: best_block.number,
 			best_block_timestamp: HeaderView::new(&self.chain.get_header(BlockId::Latest).expect("Latest hash is always in the chain")).timestamp(),
 			ancient_block_hash: if first_block.is_some() { Some(genesis_hash) } else { None },
 			ancient_block_number: if first_block.is_some() { Some(0) } else { None },
 			first_block_hash: first_block.as_ref().map(|first| first.hash),
--- a/ethcore/res/tendermint.json
+++ b/ethcore/res/tendermint.json
@ -9,7 +9,11 @@
 						"0x82a978b3f5962a5b0957d9ee9eef472ee55b42f1",
 						"0x7d577a597b2742b498cb5cf0c26cdcd726d39e6e"
 					]
-				}
+				},
 				"timeoutPropose": 10000,
 				"timeoutPrevote": 10000,
 				"timeoutPrecommit": 10000,
 				"timeoutCommit": 10000
 			}
 		}
 	},
--- a/ethcore/src/account_provider/mod.rs
+++ b/ethcore/src/account_provider/mod.rs
@ -21,7 +21,7 @@ mod stores;
 use self::stores::{AddressBook, DappsSettingsStore, NewDappsPolicy};
 use std::fmt;
-use std::collections::HashMap;
+use std::collections::{HashMap, HashSet};
 use std::time::{Instant, Duration};
 use util::RwLock;
 use ethstore::{SimpleSecretStore, SecretStore, Error as SSError, EthStore, EthMultiStore,
@ -114,8 +114,8 @@ impl AccountProvider {
 	pub fn new(sstore: Box<SecretStore>) -> Self {
 		AccountProvider {
 			unlocked: RwLock::new(HashMap::new()),
-			address_book: RwLock::new(AddressBook::new(sstore.local_path().into())),
+			address_book: RwLock::new(AddressBook::new(&sstore.local_path())),
-			dapps_settings: RwLock::new(DappsSettingsStore::new(sstore.local_path().into())),
+			dapps_settings: RwLock::new(DappsSettingsStore::new(&sstore.local_path())),
 			sstore: sstore,
 			transient_sstore: transient_sstore(),
 		}
@ -216,7 +216,7 @@ impl AccountProvider {
 			Some(accounts) => Ok(accounts),
 			None => match dapps.policy() {
 				NewDappsPolicy::AllAccounts => self.accounts(),
-				NewDappsPolicy::Whitelist(accounts) => Ok(accounts),
+				NewDappsPolicy::Whitelist(accounts) => self.filter_addresses(accounts),
 			}
 		}
 	}
@ -231,28 +231,42 @@ impl AccountProvider {
 	/// Sets addresses visile for dapp.
 	pub fn set_dapps_addresses(&self, dapp: DappId, addresses: Vec<Address>) -> Result<(), Error> {
 		let addresses = self.filter_addresses(addresses)?;
 		self.dapps_settings.write().set_accounts(dapp, addresses);
 		Ok(())
 	}
-	/// Returns each address along with metadata.
+	/// Removes addresses that are neither accounts nor in address book.
-	pub fn addresses_info(&self) -> Result<HashMap<Address, AccountMeta>, Error> {
+	fn filter_addresses(&self, addresses: Vec<Address>) -> Result<Vec<Address>, Error> {
-		Ok(self.address_book.read().get())
+		let valid = self.addresses_info().into_iter()
 			.map(|(address, _)| address)
 			.chain(self.accounts()?)
 			.collect::<HashSet<_>>();
 		Ok(addresses.into_iter()
 			.filter(|a| valid.contains(&a))
 			.collect()
 		)
 	}
 	/// Returns each address along with metadata.
-	pub fn set_address_name(&self, account: Address, name: String) -> Result<(), Error> {
+	pub fn addresses_info(&self) -> HashMap<Address, AccountMeta> {
-		Ok(self.address_book.write().set_name(account, name))
+		self.address_book.read().get()
 	}
 	/// Returns each address along with metadata.
-	pub fn set_address_meta(&self, account: Address, meta: String) -> Result<(), Error> {
+	pub fn set_address_name(&self, account: Address, name: String) {
-		Ok(self.address_book.write().set_meta(account, meta))
+		self.address_book.write().set_name(account, name)
 	}
 	/// Returns each address along with metadata.
 	pub fn set_address_meta(&self, account: Address, meta: String) {
 		self.address_book.write().set_meta(account, meta)
 	}
 	/// Removes and address from the addressbook
-	pub fn remove_address(&self, addr: Address) -> Result<(), Error> {
+	pub fn remove_address(&self, addr: Address) {
-		Ok(self.address_book.write().remove(addr))
+		self.address_book.write().remove(addr)
 	}
 	/// Returns each account along with name and meta.
@ -502,9 +516,12 @@ mod tests {
 		let app = DappId("app1".into());
 		// set `AllAccounts` policy
 		ap.set_new_dapps_whitelist(None).unwrap();
 		// add accounts to address book
 		ap.set_address_name(1.into(), "1".into());
 		ap.set_address_name(2.into(), "2".into());
 		// when
-		ap.set_dapps_addresses(app.clone(), vec![1.into(), 2.into()]).unwrap();
+		ap.set_dapps_addresses(app.clone(), vec![1.into(), 2.into(), 3.into()]).unwrap();
 		// then
 		assert_eq!(ap.dapps_addresses(app.clone()).unwrap(), vec![1.into(), 2.into()]);
@ -515,6 +532,7 @@ mod tests {
 		// given
 		let ap = AccountProvider::transient_provider();
 		let address = ap.new_account("test").unwrap();
 		ap.set_address_name(1.into(), "1".into());
 		// When returning nothing
 		ap.set_new_dapps_whitelist(Some(vec![])).unwrap();
@ -524,6 +542,10 @@ mod tests {
 		ap.set_new_dapps_whitelist(None).unwrap();
 		assert_eq!(ap.dapps_addresses("app1".into()).unwrap(), vec![address]);
 		// change to non-existent account
 		ap.set_new_dapps_whitelist(Some(vec![2.into()])).unwrap();
 		assert_eq!(ap.dapps_addresses("app1".into()).unwrap(), vec![]);
 		// change to a whitelist
 		ap.set_new_dapps_whitelist(Some(vec![1.into()])).unwrap();
 		assert_eq!(ap.dapps_addresses("app1".into()).unwrap(), vec![1.into()]);
--- a/ethcore/src/account_provider/stores.rs
+++ b/ethcore/src/account_provider/stores.rs
@ -19,7 +19,7 @@
 use std::{fs, fmt, hash, ops};
 use std::sync::atomic::{self, AtomicUsize};
 use std::collections::HashMap;
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 use ethstore::ethkey::Address;
 use ethjson::misc::{
@ -37,9 +37,9 @@ pub struct AddressBook {
 impl AddressBook {
 	/// Creates new address book at given directory.
-	pub fn new(path: String) -> Self {
+	pub fn new(path: &Path) -> Self {
 		let mut r = AddressBook {
-			cache: DiskMap::new(path, "address_book.json".into())
+			cache: DiskMap::new(path, "address_book.json")
 		};
 		r.cache.revert(AccountMeta::read);
 		r
@ -200,11 +200,11 @@ pub struct DappsSettingsStore {
 impl DappsSettingsStore {
 	/// Creates new store at given directory path.
-	pub fn new(path: String) -> Self {
+	pub fn new(path: &Path) -> Self {
 		let mut r = DappsSettingsStore {
-			settings: DiskMap::new(path.clone(), "dapps_accounts.json".into()),
+			settings: DiskMap::new(path, "dapps_accounts.json".into()),
-			policy: DiskMap::new(path.clone(), "dapps_policy.json".into()),
+			policy: DiskMap::new(path, "dapps_policy.json".into()),
-			history: DiskMap::new(path.clone(), "dapps_history.json".into()),
+			history: DiskMap::new(path, "dapps_history.json".into()),
 			time: TimeProvider::Clock,
 		};
 		r.settings.revert(JsonSettings::read);
@ -297,9 +297,8 @@ impl<K: hash::Hash + Eq, V> ops::DerefMut for DiskMap<K, V> {
 }
 impl<K: hash::Hash + Eq, V> DiskMap<K, V> {
-	pub fn new(path: String, file_name: String) -> Self {
+	pub fn new(path: &Path, file_name: &str) -> Self {
-		trace!(target: "diskmap", "new({})", path);
+		let mut path = path.to_owned();
 		let mut path: PathBuf = path.into();
 		path.push(file_name);
 		trace!(target: "diskmap", "path={:?}", path);
 		DiskMap {
@ -310,7 +309,7 @@ impl<K: hash::Hash + Eq, V> DiskMap<K, V> {
 	}
 	pub fn transient() -> Self {
-		let mut map = DiskMap::new(Default::default(), "diskmap.json".into());
+		let mut map = DiskMap::new(&PathBuf::new(), "diskmap.json".into());
 		map.transient = true;
 		map
 	}
@ -354,27 +353,25 @@ mod tests {
 	#[test]
 	fn should_save_and_reload_address_book() {
-		let temp = RandomTempPath::create_dir();
+		let path = RandomTempPath::create_dir();
-		let path = temp.as_str().to_owned();
+		let mut b = AddressBook::new(&path);
 		let mut b = AddressBook::new(path.clone());
 		b.set_name(1.into(), "One".to_owned());
 		b.set_meta(1.into(), "{1:1}".to_owned());
-		let b = AddressBook::new(path);
+		let b = AddressBook::new(&path);
 		assert_eq!(b.get(), hash_map![1.into() => AccountMeta{name: "One".to_owned(), meta: "{1:1}".to_owned(), uuid: None}]);
 	}
 	#[test]
 	fn should_remove_address() {
-		let temp = RandomTempPath::create_dir();
+		let path = RandomTempPath::create_dir();
-		let path = temp.as_str().to_owned();
+		let mut b = AddressBook::new(&path);
 		let mut b = AddressBook::new(path.clone());
 		b.set_name(1.into(), "One".to_owned());
 		b.set_name(2.into(), "Two".to_owned());
 		b.set_name(3.into(), "Three".to_owned());
 		b.remove(2.into());
-		let b = AddressBook::new(path);
+		let b = AddressBook::new(&path);
 		assert_eq!(b.get(), hash_map![
 			1.into() => AccountMeta{name: "One".to_owned(), meta: "{}".to_owned(), uuid: None},
 			3.into() => AccountMeta{name: "Three".to_owned(), meta: "{}".to_owned(), uuid: None}
@ -384,15 +381,14 @@ mod tests {
 	#[test]
 	fn should_save_and_reload_dapps_settings() {
 		// given
-		let temp = RandomTempPath::create_dir();
+		let path = RandomTempPath::create_dir();
-		let path = temp.as_str().to_owned();
+		let mut b = DappsSettingsStore::new(&path);
 		let mut b = DappsSettingsStore::new(path.clone());
 		// when
 		b.set_accounts("dappOne".into(), vec![1.into(), 2.into()]);
 		// then
-		let b = DappsSettingsStore::new(path);
+		let b = DappsSettingsStore::new(&path);
 		assert_eq!(b.settings(), hash_map![
 			"dappOne".into() => DappsSettings {
 				accounts: vec![1.into(), 2.into()],
@ -422,9 +418,8 @@ mod tests {
 	#[test]
 	fn should_store_dapps_policy() {
 		// given
-		let temp = RandomTempPath::create_dir();
+		let path = RandomTempPath::create_dir();
-		let path = temp.as_str().to_owned();
+		let mut store = DappsSettingsStore::new(&path);
 		let mut store = DappsSettingsStore::new(path.clone());
 		// Test default policy
 		assert_eq!(store.policy(), NewDappsPolicy::AllAccounts);
@ -433,7 +428,7 @@ mod tests {
 		store.set_policy(NewDappsPolicy::Whitelist(vec![1.into(), 2.into()]));
 		// then
-		let store = DappsSettingsStore::new(path);
+		let store = DappsSettingsStore::new(&path);
 		assert_eq!(store.policy.clone(), hash_map![
 			"default".into() => NewDappsPolicy::Whitelist(vec![1.into(), 2.into()])
 		]);
--- a/ethcore/src/blockchain/best_block.rs
+++ b/ethcore/src/blockchain/best_block.rs
@ -24,6 +24,8 @@ pub struct BestBlock {
 	pub hash: H256,
 	/// Best block number.
 	pub number: BlockNumber,
 	/// Best block timestamp.
 	pub timestamp: u64,
 	/// Best block total difficulty.
 	pub total_difficulty: U256,
 	/// Best block uncompressed bytes
--- a/ethcore/src/blockchain/blockchain.rs
+++ b/ethcore/src/blockchain/blockchain.rs
@ -485,6 +485,7 @@ impl BlockChain {
 			let best_block_number = bc.block_number(&best_block_hash).unwrap();
 			let best_block_total_difficulty = bc.block_details(&best_block_hash).unwrap().total_difficulty;
 			let best_block_rlp = bc.block(&best_block_hash).unwrap().into_inner();
 			let best_block_timestamp = BlockView::new(&best_block_rlp).header().timestamp();
 			let raw_first = bc.db.get(db::COL_EXTRA, b"first").unwrap().map(|v| v.to_vec());
 			let mut best_ancient = bc.db.get(db::COL_EXTRA, b"ancient").unwrap().map(|h| H256::from_slice(&h));
@ -533,6 +534,7 @@ impl BlockChain {
 				number: best_block_number,
 				total_difficulty: best_block_total_difficulty,
 				hash: best_block_hash,
 				timestamp: best_block_timestamp,
 				block: best_block_rlp,
 			};
@ -585,6 +587,7 @@ impl BlockChain {
 					number: extras.number - 1,
 					total_difficulty: best_block_total_difficulty,
 					hash: hash,
 					timestamp: BlockView::new(&best_block_rlp).header().timestamp(),
 					block: best_block_rlp,
 				};
 				// update parent extras
@ -738,6 +741,7 @@ impl BlockChain {
 				blocks_blooms: self.prepare_block_blooms_update(bytes, &info),
 				transactions_addresses: self.prepare_transaction_addresses_update(bytes, &info),
 				info: info,
 				timestamp: header.timestamp(),
 				block: bytes
 			}, is_best);
@ -786,6 +790,7 @@ impl BlockChain {
 				blocks_blooms: self.prepare_block_blooms_update(bytes, &info),
 				transactions_addresses: self.prepare_transaction_addresses_update(bytes, &info),
 				info: info,
 				timestamp: header.timestamp(),
 				block: bytes,
 			}, is_best);
 			true
@ -850,6 +855,7 @@ impl BlockChain {
 			blocks_blooms: self.prepare_block_blooms_update(bytes, &info),
 			transactions_addresses: self.prepare_transaction_addresses_update(bytes, &info),
 			info: info.clone(),
 			timestamp: header.timestamp(),
 			block: bytes,
 		}, true);
@ -921,6 +927,7 @@ impl BlockChain {
 						hash: update.info.hash,
 						number: update.info.number,
 						total_difficulty: update.info.total_difficulty,
 						timestamp: update.timestamp,
 						block: update.block.to_vec(),
 					});
 				},
@ -1206,6 +1213,11 @@ impl BlockChain {
 		self.best_block.read().number
 	}
 	/// Get best block timestamp.
 	pub fn best_block_timestamp(&self) -> u64 {
 		self.best_block.read().timestamp
 	}
 	/// Get best block total difficulty.
 	pub fn best_block_total_difficulty(&self) -> U256 {
 		self.best_block.read().total_difficulty
@ -1293,6 +1305,7 @@ impl BlockChain {
 			genesis_hash: self.genesis_hash(),
 			best_block_hash: best_block.hash.clone(),
 			best_block_number: best_block.number,
 			best_block_timestamp: best_block.timestamp,
 			first_block_hash: self.first_block(),
 			first_block_number: From::from(self.first_block_number()),
 			ancient_block_hash: best_ancient_block.as_ref().map(|b| b.hash.clone()),
--- a/ethcore/src/blockchain/update.rs
+++ b/ethcore/src/blockchain/update.rs
@ -9,6 +9,8 @@ use super::extras::{BlockDetails, BlockReceipts, TransactionAddress, LogGroupPos
 pub struct ExtrasUpdate<'a> {
 	/// Block info.
 	pub info: BlockInfo,
 	/// Block timestamp.
 	pub timestamp: u64,
 	/// Current block uncompressed rlp bytes
 	pub block: &'a [u8],
 	/// Modified block hashes.
--- a/ethcore/src/client/client.rs
+++ b/ethcore/src/client/client.rs
@ -1406,7 +1406,11 @@ impl BlockChainClient for Client {
 	}
 	fn ready_transactions(&self) -> Vec<PendingTransaction> {
-		self.miner.ready_transactions(self.chain.read().best_block_number())
+		let (number, timestamp) = {
 			let chain = self.chain.read();
 			(chain.best_block_number(), chain.best_block_timestamp())
 		};
 		self.miner.ready_transactions(number, timestamp)
 	}
 	fn queue_consensus_message(&self, message: Bytes) {
--- a/ethcore/src/client/test_client.rs
+++ b/ethcore/src/client/test_client.rs
@ -669,12 +669,14 @@ impl BlockChainClient for TestBlockChainClient {
 	}
 	fn chain_info(&self) -> BlockChainInfo {
 		let number = self.blocks.read().len() as BlockNumber - 1;
 		BlockChainInfo {
 			total_difficulty: *self.difficulty.read(),
 			pending_total_difficulty: *self.difficulty.read(),
 			genesis_hash: self.genesis_hash.clone(),
 			best_block_hash: self.last_hash.read().clone(),
-			best_block_number: self.blocks.read().len() as BlockNumber - 1,
+			best_block_number: number,
 			best_block_timestamp: number,
 			first_block_hash: self.first_block.read().as_ref().map(|x| x.0),
 			first_block_number: self.first_block.read().as_ref().map(|x| x.1),
 			ancient_block_hash: self.ancient_block.read().as_ref().map(|x| x.0),
@ -709,7 +711,8 @@ impl BlockChainClient for TestBlockChainClient {
 	}
 	fn ready_transactions(&self) -> Vec<PendingTransaction> {
-		self.miner.ready_transactions(self.chain_info().best_block_number)
+		let info = self.chain_info();
 		self.miner.ready_transactions(info.best_block_number, info.best_block_timestamp)
 	}
 	fn signing_network_id(&self) -> Option<u64> { None }
--- a/ethcore/src/engines/authority_round.rs
+++ b/ethcore/src/engines/authority_round.rs
@ -159,7 +159,7 @@ impl IoHandler<()> for TransitionHandler {
 	fn initialize(&self, io: &IoContext<()>) {
 		if let Some(engine) = self.engine.upgrade() {
 			io.register_timer_once(ENGINE_TIMEOUT_TOKEN, engine.remaining_step_duration().as_millis())
-				.unwrap_or_else(|e| warn!(target: "poa", "Failed to start consensus step timer: {}.", e))
+				.unwrap_or_else(|e| warn!(target: "engine", "Failed to start consensus step timer: {}.", e))
 		}
 	}
@ -168,7 +168,7 @@ impl IoHandler<()> for TransitionHandler {
 			if let Some(engine) = self.engine.upgrade() {
 				engine.step();
 				io.register_timer_once(ENGINE_TIMEOUT_TOKEN, engine.remaining_step_duration().as_millis())
-					.unwrap_or_else(|e| warn!(target: "poa", "Failed to restart consensus step timer: {}.", e))
+					.unwrap_or_else(|e| warn!(target: "engine", "Failed to restart consensus step timer: {}.", e))
 			}
 		}
 	}
@ -234,14 +234,14 @@ impl Engine for AuthorityRound {
 		let step = self.step.load(AtomicOrdering::SeqCst);
 		if self.is_step_proposer(step, header.author()) {
 			if let Ok(signature) = self.signer.sign(header.bare_hash()) {
-				trace!(target: "poa", "generate_seal: Issuing a block for step {}.", step);
+				trace!(target: "engine", "generate_seal: Issuing a block for step {}.", step);
 				self.proposed.store(true, AtomicOrdering::SeqCst);
 				return Seal::Regular(vec![encode(&step).to_vec(), encode(&(&H520::from(signature) as &[u8])).to_vec()]);
 			} else {
-				warn!(target: "poa", "generate_seal: FAIL: Accounts secret key unavailable.");
+				warn!(target: "engine", "generate_seal: FAIL: Accounts secret key unavailable.");
 			}
 		} else {
-			trace!(target: "poa", "generate_seal: Not a proposer for step {}.", step);
+			trace!(target: "engine", "generate_seal: Not a proposer for step {}.", step);
 		}
 		Seal::None
 	}
@ -260,7 +260,7 @@ impl Engine for AuthorityRound {
 	/// Check the number of seal fields.
 	fn verify_block_basic(&self, header: &Header, _block: Option<&[u8]>) -> Result<(), Error> {
 		if header.seal().len() != self.seal_fields() {
-			trace!(target: "poa", "verify_block_basic: wrong number of seal fields");
+			trace!(target: "engine", "verify_block_basic: wrong number of seal fields");
 			Err(From::from(BlockError::InvalidSealArity(
 				Mismatch { expected: self.seal_fields(), found: header.seal().len() }
 			)))
@ -279,11 +279,11 @@ impl Engine for AuthorityRound {
 			if verify_address(&correct_proposer, &proposer_signature, &header.bare_hash())? {
 				Ok(())
 			} else {
-				trace!(target: "poa", "verify_block_unordered: bad proposer for step: {}", header_step);
+				trace!(target: "engine", "verify_block_unordered: bad proposer for step: {}", header_step);
 				Err(EngineError::NotProposer(Mismatch { expected: correct_proposer, found: header.author().clone() }))?
 			}
 		} else {
-			trace!(target: "poa", "verify_block_unordered: block from the future");
+			trace!(target: "engine", "verify_block_unordered: block from the future");
 			self.validators.report_benign(header.author());
 			Err(BlockError::InvalidSeal)?
 		}
@ -297,7 +297,7 @@ impl Engine for AuthorityRound {
 		let step = header_step(header)?;
 		// Check if parent is from a previous step.
 		if step == header_step(parent)? {
-			trace!(target: "poa", "Multiple blocks proposed for step {}.", step);
+			trace!(target: "engine", "Multiple blocks proposed for step {}.", step);
 			self.validators.report_malicious(header.author());
 			Err(EngineError::DoubleVote(header.author().clone()))?;
 		}
--- a/ethcore/src/engines/tendermint/mod.rs
+++ b/ethcore/src/engines/tendermint/mod.rs
@ -159,13 +159,13 @@ impl Tendermint {
 				let message = ConsensusMessage::new(signature, h, r, *s, block_hash);
 				let validator = self.signer.address();
 				self.votes.vote(message.clone(), &validator);
-				debug!(target: "poa", "Generated {:?} as {}.", message, validator);
+				debug!(target: "engine", "Generated {:?} as {}.", message, validator);
 				self.handle_valid_message(&message);
 				Some(message_rlp)
 			},
 			Err(e) => {
-				trace!(target: "poa", "Could not sign the message {}", e);
+				trace!(target: "engine", "Could not sign the message {}", e);
 				None
 			},
 		}
@ -186,7 +186,7 @@ impl Tendermint {
 	fn to_next_height(&self, height: Height) {
 		let new_height = height + 1;
-		debug!(target: "poa", "Received a Commit, transitioning to height {}.", new_height);
+		debug!(target: "engine", "Received a Commit, transitioning to height {}.", new_height);
 		self.last_lock.store(0, AtomicOrdering::SeqCst);
 		self.height.store(new_height, AtomicOrdering::SeqCst);
 		self.view.store(0, AtomicOrdering::SeqCst);
@ -196,7 +196,7 @@ impl Tendermint {
 	/// Use via step_service to transition steps.
 	fn to_step(&self, step: Step) {
 		if let Err(io_err) = self.step_service.send_message(step) {
-			warn!(target: "poa", "Could not proceed to step {}.", io_err)
+			warn!(target: "engine", "Could not proceed to step {}.", io_err)
 		}
 		*self.step.write() = step;
 		match step {
@ -212,10 +212,10 @@ impl Tendermint {
 				self.generate_and_broadcast_message(block_hash);
 			},
 			Step::Precommit => {
-				trace!(target: "poa", "to_step: Precommit.");
+				trace!(target: "engine", "to_step: Precommit.");
 				let block_hash = match *self.lock_change.read() {
 					Some(ref m) if self.is_view(m) && m.block_hash.is_some() => {
-						trace!(target: "poa", "Setting last lock: {}", m.vote_step.view);
+						trace!(target: "engine", "Setting last lock: {}", m.vote_step.view);
 						self.last_lock.store(m.vote_step.view, AtomicOrdering::SeqCst);
 						m.block_hash
 					},
@ -224,7 +224,7 @@ impl Tendermint {
 				self.generate_and_broadcast_message(block_hash);
 			},
 			Step::Commit => {
-				trace!(target: "poa", "to_step: Commit.");
+				trace!(target: "engine", "to_step: Commit.");
 				// Commit the block using a complete signature set.
 				let view = self.view.load(AtomicOrdering::SeqCst);
 				let height = self.height.load(AtomicOrdering::SeqCst);
@ -234,7 +234,7 @@ impl Tendermint {
 						let proposal_step = VoteStep::new(height, view, Step::Propose);
 						let precommit_step = VoteStep::new(proposal_step.height, proposal_step.view, Step::Precommit);
 						if let Some(seal) = self.votes.seal_signatures(proposal_step, precommit_step, &block_hash) {
-							trace!(target: "poa", "Collected seal: {:?}", seal);
+							trace!(target: "engine", "Collected seal: {:?}", seal);
 							let seal = vec![
 								::rlp::encode(&view).to_vec(),
 								::rlp::encode(&seal.proposal).to_vec(),
@ -243,7 +243,7 @@ impl Tendermint {
 							self.submit_seal(block_hash, seal);
 							self.to_next_height(height);
 						} else {
-							warn!(target: "poa", "Not enough votes found!");
+							warn!(target: "engine", "Not enough votes found!");
 						}
 					}
 				}
@ -262,7 +262,7 @@ impl Tendermint {
 	/// Find the designated for the given view.
 	fn view_proposer(&self, height: Height, view: View) -> Address {
 		let proposer_nonce = height + view;
-		trace!(target: "poa", "Proposer nonce: {}", proposer_nonce);
+		trace!(target: "engine", "Proposer nonce: {}", proposer_nonce);
 		self.validators.get(proposer_nonce)
 	}
@ -291,7 +291,7 @@ impl Tendermint {
 	}
 	fn increment_view(&self, n: View) {
-		trace!(target: "poa", "increment_view: New view.");
+		trace!(target: "engine", "increment_view: New view.");
 		self.view.fetch_add(n, AtomicOrdering::SeqCst);
 	}
@ -331,7 +331,7 @@ impl Tendermint {
 			&& message.block_hash.is_some()
 			&& self.has_enough_aligned_votes(message);
 		if lock_change {
-			trace!(target: "poa", "handle_valid_message: Lock change.");
+			trace!(target: "engine", "handle_valid_message: Lock change.");
 			*self.lock_change.write()	= Some(message.clone());
 		}
 		// Check if it can affect the step transition.
@ -349,7 +349,7 @@ impl Tendermint {
 					self.increment_view(vote_step.view - self.view.load(AtomicOrdering::SeqCst));
 					Some(Step::Precommit)
 				},
-				// Avoid counting twice.
+				// Avoid counting votes twice.
 				Step::Prevote if lock_change => Some(Step::Precommit),
 				Step::Prevote if self.has_enough_aligned_votes(message) => Some(Step::Precommit),
 				Step::Prevote if self.has_enough_future_step_votes(&vote_step) => {
@ -360,7 +360,7 @@ impl Tendermint {
 			};
 			if let Some(step) = next_step {
-				trace!(target: "poa", "Transition to {:?} triggered.", step);
+				trace!(target: "engine", "Transition to {:?} triggered.", step);
 				self.to_step(step);
 			}
 		}
@ -429,7 +429,7 @@ impl Engine for Tendermint {
 		let vote_info = message_info_rlp(&VoteStep::new(height, view, Step::Propose), bh.clone());
 		if let Ok(signature) = self.signer.sign(vote_info.sha3()).map(Into::into) {
 			// Insert Propose vote.
-			debug!(target: "poa", "Submitting proposal {} at height {} view {}.", header.bare_hash(), height, view);
+			debug!(target: "engine", "Submitting proposal {} at height {} view {}.", header.bare_hash(), height, view);
 			self.votes.vote(ConsensusMessage::new(signature, height, view, Step::Propose, bh), author);
 			// Remember proposal for later seal submission.
 			*self.proposal.write() = bh;
@ -439,7 +439,7 @@ impl Engine for Tendermint {
 				::rlp::EMPTY_LIST_RLP.to_vec()
 			])
 		} else {
-			warn!(target: "poa", "generate_seal: FAIL: accounts secret key unavailable");
+			warn!(target: "engine", "generate_seal: FAIL: accounts secret key unavailable");
 			Seal::None
 		}
 	}
@ -457,7 +457,7 @@ impl Engine for Tendermint {
 				self.validators.report_malicious(&sender);
 				Err(EngineError::DoubleVote(sender))?
 			}
-			trace!(target: "poa", "Handling a valid {:?} from {}.", message, sender);
+			trace!(target: "engine", "Handling a valid {:?} from {}.", message, sender);
 			self.handle_valid_message(&message);
 		}
 		Ok(())
@ -519,7 +519,7 @@ impl Engine for Tendermint {
 			if origins.insert(address) {
 				signature_count += 1;
 			} else {
-				warn!(target: "poa", "verify_block_unordered: Duplicate signature from {} on the seal.", address);
+				warn!(target: "engine", "verify_block_unordered: Duplicate signature from {} on the seal.", address);
 				Err(BlockError::InvalidSeal)?;
 			}
 		}
@ -577,12 +577,12 @@ impl Engine for Tendermint {
 		let proposal = ConsensusMessage::new_proposal(header).expect("block went through full verification; this Engine verifies new_proposal creation; qed");
 		if signatures_len != 1 {
 			// New Commit received, skip to next height.
-			trace!(target: "poa", "Received a commit: {:?}.", proposal.vote_step);
+			trace!(target: "engine", "Received a commit: {:?}.", proposal.vote_step);
 			self.to_next_height(proposal.vote_step.height);
 			return false;
 		}
 		let proposer = proposal.verify().expect("block went through full verification; this Engine tries verify; qed");
-		debug!(target: "poa", "Received a new proposal {:?} from {}.", proposal.vote_step, proposer);
+		debug!(target: "engine", "Received a new proposal {:?} from {}.", proposal.vote_step, proposer);
 		if self.is_view(&proposal) {
 			*self.proposal.write() = proposal.block_hash.clone();
 		}
@ -594,7 +594,7 @@ impl Engine for Tendermint {
 	fn step(&self) {
 		let next_step = match *self.step.read() {
 			Step::Propose => {
-				trace!(target: "poa", "Propose timeout.");
+				trace!(target: "engine", "Propose timeout.");
 				if self.proposal.read().is_none() {
 					// Report the proposer if no proposal was received.
 					let current_proposer = self.view_proposer(self.height.load(AtomicOrdering::SeqCst), self.view.load(AtomicOrdering::SeqCst));
@ -603,26 +603,26 @@ impl Engine for Tendermint {
 				Step::Prevote
 			},
 			Step::Prevote if self.has_enough_any_votes() => {
-				trace!(target: "poa", "Prevote timeout.");
+				trace!(target: "engine", "Prevote timeout.");
 				Step::Precommit
 			},
 			Step::Prevote => {
-				trace!(target: "poa", "Prevote timeout without enough votes.");
+				trace!(target: "engine", "Prevote timeout without enough votes.");
 				self.broadcast_old_messages();
 				Step::Prevote
 			},
 			Step::Precommit if self.has_enough_any_votes() => {
-				trace!(target: "poa", "Precommit timeout.");
+				trace!(target: "engine", "Precommit timeout.");
 				self.increment_view(1);
 				Step::Propose
 			},
 			Step::Precommit => {
-				trace!(target: "poa", "Precommit timeout without enough votes.");
+				trace!(target: "engine", "Precommit timeout without enough votes.");
 				self.broadcast_old_messages();
 				Step::Precommit
 			},
 			Step::Commit => {
-				trace!(target: "poa", "Commit timeout.");
+				trace!(target: "engine", "Commit timeout.");
 				Step::Propose
 			},
 		};
@ -838,7 +838,6 @@ mod tests {
 		let (b, seal) = propose_default(&spec, proposer);
 		assert!(b.lock().try_seal(spec.engine.as_ref(), seal).is_ok());
 		spec.engine.stop();
 	}
 	#[test]
@ -850,7 +849,6 @@ mod tests {
 		let (b, seal) = propose_default(&spec, proposer);
 		let sealed = b.lock().seal(spec.engine.as_ref(), seal).unwrap();
 		assert!(spec.engine.is_proposal(sealed.header()));
 		spec.engine.stop();
 	}
 	#[test]
@ -858,7 +856,7 @@ mod tests {
 		let (spec, tap) = setup();
 		let engine = spec.engine.clone();
-		let v0 = insert_and_register(&tap, engine.as_ref(), "0");
+		let v0 = insert_and_unlock(&tap, "0");
 		let v1 = insert_and_register(&tap, engine.as_ref(), "1");
 		let h = 1;
@ -883,7 +881,6 @@ mod tests {
 		assert!(notify.messages.read().contains(&prevote_current));
 		assert!(notify.messages.read().contains(&precommit_current));
 		assert!(notify.messages.read().contains(&prevote_future));
 		engine.stop();
 	}
 	#[test]
@ -933,7 +930,5 @@ mod tests {
 		// Last precommit.
 		vote(engine, |mh| tap.sign(v0, None, mh).map(H520::from), h, r, Step::Precommit, proposal);
 		assert_eq!(client.chain_info().best_block_number, 1);
 		engine.stop();
 	}
 }
--- a/ethcore/src/engines/transition.rs
+++ b/ethcore/src/engines/transition.rs
@ -56,7 +56,9 @@ fn set_timeout<S: Sync + Send + Clone>(io: &IoContext<S>, timeout: Duration) {
 impl <S> IoHandler<S> for TransitionHandler<S> where S: Sync + Send + Clone + 'static {
 	fn initialize(&self, io: &IoContext<S>) {
-		set_timeout(io, self.timeouts.initial());
+		let initial = self.timeouts.initial();
 		trace!(target: "engine", "Setting the initial timeout to {}.", initial);
 		set_timeout(io, initial);
 	}
 	/// Call step after timeout.
--- a/ethcore/src/engines/vote_collector.rs
+++ b/ethcore/src/engines/vote_collector.rs
@ -118,13 +118,13 @@ impl <M: Message + Default + Encodable + Debug> VoteCollector<M> {
 			.get(&message.round())
 			.map_or(false, |c| {
 				let is_known = c.messages.contains(message);
-				if is_known { trace!(target: "poa", "Known message: {:?}.", message); }
+				if is_known { trace!(target: "engine", "Known message: {:?}.", message); }
 				is_known
 			})
 		|| {
 			let guard = self.votes.read();
 			let is_old = guard.keys().next().map_or(true, |oldest| message.round() <= oldest);
-			if is_old { trace!(target: "poa", "Old message {:?}.", message); }
+			if is_old { trace!(target: "engine", "Old message {:?}.", message); }
 			is_old
 		}
 	}
--- a/ethcore/src/miner/miner.rs
+++ b/ethcore/src/miner/miner.rs
@ -25,7 +25,7 @@ use client::TransactionImportResult;
 use executive::contract_address;
 use block::{ClosedBlock, IsBlock, Block};
 use error::*;
-use transaction::{Action, UnverifiedTransaction, PendingTransaction, SignedTransaction};
+use transaction::{Action, UnverifiedTransaction, PendingTransaction, SignedTransaction, Condition as TransactionCondition};
 use receipt::{Receipt, RichReceipt};
 use spec::Spec;
 use engines::{Engine, Seal};
@ -325,7 +325,7 @@ impl Miner {
 		let _timer = PerfTimer::new("prepare_block");
 		let chain_info = chain.chain_info();
 		let (transactions, mut open_block, original_work_hash) = {
-			let transactions = {self.transaction_queue.lock().top_transactions_at(chain_info.best_block_number)};
+			let transactions = {self.transaction_queue.lock().top_transactions_at(chain_info.best_block_number, chain_info.best_block_timestamp)};
 			let mut sealing_work = self.sealing_work.lock();
 			let last_work_hash = sealing_work.queue.peek_last_ref().map(|pb| pb.block().fields().header.hash());
 			let best_hash = chain_info.best_block_hash;
@ -597,7 +597,7 @@ impl Miner {
 		client: &MiningBlockChainClient,
 		transactions: Vec<UnverifiedTransaction>,
 		default_origin: TransactionOrigin,
-		min_block: Option<BlockNumber>,
+		condition: Option<TransactionCondition>,
 		transaction_queue: &mut BanningTransactionQueue,
 	) -> Vec<Result<TransactionImportResult, Error>> {
 		let accounts = self.accounts.as_ref()
@ -635,7 +635,7 @@ impl Miner {
 						let details_provider = TransactionDetailsProvider::new(client, &self.service_transaction_action);
 						match origin {
 							TransactionOrigin::Local | TransactionOrigin::RetractedBlock => {
-								transaction_queue.add(transaction, origin, insertion_time, min_block, &details_provider)
+								transaction_queue.add(transaction, origin, insertion_time, condition.clone(), &details_provider)
 							},
 							TransactionOrigin::External => {
 								transaction_queue.add_with_banlist(transaction, insertion_time, &details_provider)
@ -892,7 +892,7 @@ impl MinerService for Miner {
 			let mut transaction_queue = self.transaction_queue.lock();
 			// We need to re-validate transactions
 			let import = self.add_transactions_to_queue(
-				chain, vec![pending.transaction.into()], TransactionOrigin::Local, pending.min_block, &mut transaction_queue
+				chain, vec![pending.transaction.into()], TransactionOrigin::Local, pending.condition, &mut transaction_queue
 			).pop().expect("one result returned per added transaction; one added => one result; qed");
 			match import {
@ -927,7 +927,7 @@ impl MinerService for Miner {
 	fn pending_transactions(&self) -> Vec<PendingTransaction> {
 		let queue = self.transaction_queue.lock();
-		queue.pending_transactions(BlockNumber::max_value())
+		queue.pending_transactions(BlockNumber::max_value(), u64::max_value())
 	}
 	fn local_transactions(&self) -> BTreeMap<H256, LocalTransactionStatus> {
@ -942,14 +942,14 @@ impl MinerService for Miner {
 		self.transaction_queue.lock().future_transactions()
 	}
-	fn ready_transactions(&self, best_block: BlockNumber) -> Vec<PendingTransaction> {
+	fn ready_transactions(&self, best_block: BlockNumber, best_block_timestamp: u64) -> Vec<PendingTransaction> {
 		let queue = self.transaction_queue.lock();
 		match self.options.pending_set {
-			PendingSet::AlwaysQueue => queue.pending_transactions(best_block),
+			PendingSet::AlwaysQueue => queue.pending_transactions(best_block, best_block_timestamp),
 			PendingSet::SealingOrElseQueue => {
 				self.from_pending_block(
 					best_block,
-					|| queue.pending_transactions(best_block),
+					|| queue.pending_transactions(best_block, best_block_timestamp),
 					|sealing| sealing.transactions().iter().map(|t| t.clone().into()).collect()
 				)
 			},
@ -1325,7 +1325,7 @@ mod tests {
 		// then
 		assert_eq!(res.unwrap(), TransactionImportResult::Current);
 		assert_eq!(miner.pending_transactions().len(), 1);
-		assert_eq!(miner.ready_transactions(best_block).len(), 1);
+		assert_eq!(miner.ready_transactions(best_block, 0).len(), 1);
 		assert_eq!(miner.pending_transactions_hashes(best_block).len(), 1);
 		assert_eq!(miner.pending_receipts(best_block).len(), 1);
 		// This method will let us know if pending block was created (before calling that method)
@ -1345,7 +1345,7 @@ mod tests {
 		// then
 		assert_eq!(res.unwrap(), TransactionImportResult::Current);
 		assert_eq!(miner.pending_transactions().len(), 1);
-		assert_eq!(miner.ready_transactions(best_block).len(), 0);
+		assert_eq!(miner.ready_transactions(best_block, 0).len(), 0);
 		assert_eq!(miner.pending_transactions_hashes(best_block).len(), 0);
 		assert_eq!(miner.pending_receipts(best_block).len(), 0);
 	}
@ -1364,7 +1364,7 @@ mod tests {
 		assert_eq!(res.unwrap(), TransactionImportResult::Current);
 		assert_eq!(miner.pending_transactions().len(), 1);
 		assert_eq!(miner.pending_transactions_hashes(best_block).len(), 0);
-		assert_eq!(miner.ready_transactions(best_block).len(), 0);
+		assert_eq!(miner.ready_transactions(best_block, 0).len(), 0);
 		assert_eq!(miner.pending_receipts(best_block).len(), 0);
 		// This method will let us know if pending block was created (before calling that method)
 		assert!(miner.prepare_work_sealing(&client));
--- a/ethcore/src/miner/mod.rs
+++ b/ethcore/src/miner/mod.rs
@ -154,7 +154,7 @@ pub trait MinerService : Send + Sync {
 	fn pending_transactions(&self) -> Vec<PendingTransaction>;
 	/// Get a list of all transactions that can go into the given block.
-	fn ready_transactions(&self, best_block: BlockNumber) -> Vec<PendingTransaction>;
+	fn ready_transactions(&self, best_block: BlockNumber, best_block_timestamp: u64) -> Vec<PendingTransaction>;
 	/// Get a list of all future transactions.
 	fn future_transactions(&self) -> Vec<PendingTransaction>;
--- a/ethcore/src/miner/transaction_queue.rs
+++ b/ethcore/src/miner/transaction_queue.rs
@ -276,17 +276,17 @@ struct VerifiedTransaction {
 	origin: TransactionOrigin,
 	/// Insertion time
 	insertion_time: QueuingInstant,
-	/// Delay until specifid block.
+	/// Delay until specified condition is met.
-	min_block: Option<BlockNumber>,
+	condition: Option<Condition>,
 }
 impl VerifiedTransaction {
-	fn new(transaction: SignedTransaction, origin: TransactionOrigin, time: QueuingInstant, min_block: Option<BlockNumber>) -> Self {
+	fn new(transaction: SignedTransaction, origin: TransactionOrigin, time: QueuingInstant, condition: Option<Condition>) -> Self {
 		VerifiedTransaction {
 			transaction: transaction,
 			origin: origin,
 			insertion_time: time,
-			min_block: min_block,
+			condition: condition,
 		}
 	}
@ -666,14 +666,14 @@ impl TransactionQueue {
 		tx: SignedTransaction,
 		origin: TransactionOrigin,
 		time: QueuingInstant,
-		min_block: Option<BlockNumber>,
+		condition: Option<Condition>,
 		details_provider: &TransactionDetailsProvider,
 	) -> Result<TransactionImportResult, Error> {
 		if origin == TransactionOrigin::Local {
 			let hash = tx.hash();
 			let cloned_tx = tx.clone();
-			let result = self.add_internal(tx, origin, time, min_block, details_provider);
+			let result = self.add_internal(tx, origin, time, condition, details_provider);
 			match result {
 				Ok(TransactionImportResult::Current) => {
 					self.local_transactions.mark_pending(hash);
@ -694,7 +694,7 @@ impl TransactionQueue {
 			}
 			result
 		} else {
-			self.add_internal(tx, origin, time, min_block, details_provider)
+			self.add_internal(tx, origin, time, condition, details_provider)
 		}
 	}
@ -704,7 +704,7 @@ impl TransactionQueue {
 		tx: SignedTransaction,
 		origin: TransactionOrigin,
 		time: QueuingInstant,
-		min_block: Option<BlockNumber>,
+		condition: Option<Condition>,
 		details_provider: &TransactionDetailsProvider,
 	) -> Result<TransactionImportResult, Error> {
 		if origin != TransactionOrigin::Local && tx.gas_price < self.minimal_gas_price {
@ -815,7 +815,7 @@ impl TransactionQueue {
 		}
 		tx.check_low_s()?;
 		// No invalid transactions beyond this point.
-		let vtx = VerifiedTransaction::new(tx, origin, time, min_block);
+		let vtx = VerifiedTransaction::new(tx, origin, time, condition);
 		let r = self.import_tx(vtx, client_account.nonce).map_err(Error::Transaction);
 		assert_eq!(self.future.by_priority.len() + self.current.by_priority.len(), self.by_hash.len());
 		r
@ -1068,11 +1068,11 @@ impl TransactionQueue {
 	/// Returns top transactions from the queue ordered by priority.
 	pub fn top_transactions(&self) -> Vec<SignedTransaction> {
-		self.top_transactions_at(BlockNumber::max_value())
+		self.top_transactions_at(BlockNumber::max_value(), u64::max_value())
 	}
-	fn filter_pending_transaction<F>(&self, best_block: BlockNumber, mut f: F)
+	fn filter_pending_transaction<F>(&self, best_block: BlockNumber, best_timestamp: u64, mut f: F)
 		where F: FnMut(&VerifiedTransaction) {
 		let mut delayed = HashSet::new();
@ -1082,7 +1082,12 @@ impl TransactionQueue {
 			if delayed.contains(&sender) {
 				continue;
 			}
-			if tx.min_block.unwrap_or(0) > best_block {
+			let delay = match tx.condition {
 				Some(Condition::Number(n)) => n > best_block,
 				Some(Condition::Timestamp(t)) => t > best_timestamp,
 				None => false,
 			};
 			if delay {
 				delayed.insert(sender);
 				continue;
 			}
@ -1091,16 +1096,16 @@ impl TransactionQueue {
 	}
 	/// Returns top transactions from the queue ordered by priority.
-	pub fn top_transactions_at(&self, best_block: BlockNumber) -> Vec<SignedTransaction> {
+	pub fn top_transactions_at(&self, best_block: BlockNumber, best_timestamp: u64) -> Vec<SignedTransaction> {
 		let mut r = Vec::new();
-		self.filter_pending_transaction(best_block, |tx| r.push(tx.transaction.clone()));
+		self.filter_pending_transaction(best_block, best_timestamp, |tx| r.push(tx.transaction.clone()));
 		r
 	}
 	/// Return all ready transactions.
-	pub fn pending_transactions(&self, best_block: BlockNumber) -> Vec<PendingTransaction> {
+	pub fn pending_transactions(&self, best_block: BlockNumber, best_timestamp: u64) -> Vec<PendingTransaction> {
 		let mut r = Vec::new();
-		self.filter_pending_transaction(best_block, |tx| r.push(PendingTransaction::new(tx.transaction.clone(), tx.min_block)));
+		self.filter_pending_transaction(best_block, best_timestamp, |tx| r.push(PendingTransaction::new(tx.transaction.clone(), tx.condition.clone())));
 		r
 	}
@ -1109,7 +1114,7 @@ impl TransactionQueue {
 		self.future.by_priority
 			.iter()
 			.map(|t| self.by_hash.get(&t.hash).expect("All transactions in `current` and `future` are always included in `by_hash`"))
-			.map(|t| PendingTransaction { transaction: t.transaction.clone(), min_block: t.min_block })
+			.map(|t| PendingTransaction { transaction: t.transaction.clone(), condition: t.condition.clone() })
 			.collect()
 	}
@ -1382,7 +1387,7 @@ pub mod test {
 	use super::{TransactionSet, TransactionOrder, VerifiedTransaction};
 	use miner::local_transactions::LocalTransactionsList;
 	use client::TransactionImportResult;
-	use transaction::{SignedTransaction, Transaction, Action};
+	use transaction::{SignedTransaction, Transaction, Action, Condition};
 	pub struct DummyTransactionDetailsProvider {
 		account_details: AccountDetails,
@ -2178,15 +2183,15 @@ pub mod test {
 		let (tx, tx2) = new_tx_pair_default(1.into(), 0.into());
 		// when
-		let res1 = txq.add(tx.clone(), TransactionOrigin::External, 0, Some(1), &default_tx_provider()).unwrap();
+		let res1 = txq.add(tx.clone(), TransactionOrigin::External, 0, Some(Condition::Number(1)), &default_tx_provider()).unwrap();
 		let res2 = txq.add(tx2.clone(), TransactionOrigin::External, 0, None, &default_tx_provider()).unwrap();
 		// then
 		assert_eq!(res1, TransactionImportResult::Current);
 		assert_eq!(res2, TransactionImportResult::Current);
-		let top = txq.top_transactions_at(0);
+		let top = txq.top_transactions_at(0, 0);
 		assert_eq!(top.len(), 0);
-		let top = txq.top_transactions_at(1);
+		let top = txq.top_transactions_at(1, 0);
 		assert_eq!(top.len(), 2);
 	}
--- a/ethcore/src/tests/client.rs
+++ b/ethcore/src/tests/client.rs
@ -29,7 +29,7 @@ use spec::Spec;
 use views::BlockView;
 use util::stats::Histogram;
 use ethkey::{KeyPair, Secret};
-use transaction::{PendingTransaction, Transaction, Action};
+use transaction::{PendingTransaction, Transaction, Action, Condition};
 use miner::MinerService;
 #[test]
@ -299,7 +299,7 @@ fn does_not_propagate_delayed_transactions() {
 		action: Action::Call(Address::default()),
 		value: 0.into(),
 		data: Vec::new(),
-	}.sign(secret, None), Some(2));
+	}.sign(secret, None), Some(Condition::Number(2)));
 	let tx1 = PendingTransaction::new(Transaction {
 		nonce: 1.into(),
 		gas_price: 0.into(),
--- a/ethcore/src/types/blockchain_info.rs
+++ b/ethcore/src/types/blockchain_info.rs
@ -34,6 +34,8 @@ pub struct BlockChainInfo {
 	pub best_block_hash: H256,
 	/// Best blockchain block number.
 	pub best_block_number: BlockNumber,
 	/// Best blockchain block timestamp.
 	pub best_block_timestamp: u64,
 	/// Best ancient block hash.
 	pub ancient_block_hash: Option<H256>,
 	/// Best ancient block number.
--- a/ethcore/src/types/transaction.rs
+++ b/ethcore/src/types/transaction.rs
@ -52,6 +52,16 @@ impl Decodable for Action {
 	}
 }
 /// Transaction activation condition.
 #[derive(Debug, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "ipc", binary)]
 pub enum Condition {
 	/// Valid at this block number or later.
 	Number(BlockNumber),
 	/// Valid at this unix time or later.
 	Timestamp(u64),
 }
 /// A set of information describing an externally-originating message call
 /// or contract creation operation.
 #[derive(Default, Debug, Clone, PartialEq, Eq)]
@ -448,16 +458,16 @@ impl Deref for LocalizedTransaction {
 pub struct PendingTransaction {
 	/// Signed transaction data.
 	pub transaction: SignedTransaction,
-	/// To be activated at this block. `None` for immediately.
+	/// To be activated at this condition. `None` for immediately.
-	pub min_block: Option<BlockNumber>,
+	pub condition: Option<Condition>,
 }
 impl PendingTransaction {
 	/// Create a new pending transaction from signed transaction.
-	pub fn new(signed: SignedTransaction, min_block: Option<BlockNumber>) -> Self {
+	pub fn new(signed: SignedTransaction, condition: Option<Condition>) -> Self {
 		PendingTransaction {
 			transaction: signed,
-			min_block: min_block,
+			condition: condition,
 		}
 	}
 }
@ -466,7 +476,7 @@ impl From<SignedTransaction> for PendingTransaction {
 	fn from(t: SignedTransaction) -> Self {
 		PendingTransaction {
 			transaction: t,
-			min_block: None,
+			condition: None,
 		}
 	}
 }
--- a/ethstore/src/ethstore.rs
+++ b/ethstore/src/ethstore.rs
@ -16,6 +16,7 @@
 use std::collections::{BTreeMap, HashMap};
 use std::mem;
 use std::path::PathBuf;
 use parking_lot::{Mutex, RwLock};
 use crypto::KEY_ITERATIONS;
@ -164,8 +165,8 @@ impl SecretStore for EthStore {
 		self.store.update(account_ref, old, safe_account)
 	}
-	fn local_path(&self) -> String {
+	fn local_path(&self) -> PathBuf {
-		self.store.dir.path().map(|p| p.to_string_lossy().into_owned()).unwrap_or_else(|| String::new())
+		self.store.dir.path().cloned().unwrap_or_else(PathBuf::new)
 	}
 	fn list_geth_accounts(&self, testnet: bool) -> Vec<Address> {
--- a/ethstore/src/secret_store.rs
+++ b/ethstore/src/secret_store.rs
@ -15,6 +15,7 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 use std::hash::{Hash, Hasher};
 use std::path::PathBuf;
 use ethkey::{Address, Message, Signature, Secret, Public};
 use Error;
 use json::Uuid;
@ -73,7 +74,7 @@ pub trait SecretStore: SimpleSecretStore {
 	fn set_name(&self, account: &StoreAccountRef, name: String) -> Result<(), Error>;
 	fn set_meta(&self, account: &StoreAccountRef, meta: String) -> Result<(), Error>;
-	fn local_path(&self) -> String;
+	fn local_path(&self) -> PathBuf;
 	fn list_geth_accounts(&self, testnet: bool) -> Vec<Address>;
 	fn import_geth_accounts(&self, vault: SecretVaultRef, desired: Vec<Address>, testnet: bool) -> Result<Vec<StoreAccountRef>, Error>;
 }
--- a/js/package.json
+++ b/js/package.json
@ -1,6 +1,6 @@
 {
  "name": "parity.js",
-  "version": "0.3.58",
+  "version": "0.3.62",
  "main": "release/index.js",
  "jsnext:main": "src/index.js",
  "author": "Parity Team <admin@parity.io>",
--- a/js/scripts/build-rpc-markdown.js
+++ b/js/scripts/build-rpc-markdown.js
@ -16,11 +16,12 @@
 import fs from 'fs';
 import path from 'path';
 import chalk from 'chalk';
 import { isPlainObject } from 'lodash';
 import { info, warn, error } from './helpers/log';
 import { Dummy } from '../src/jsonrpc/helpers';
 import interfaces from '../src/jsonrpc';
 import rustMethods from './helpers/parsed-rpc-traits';
 const ROOT_DIR = path.join(__dirname, '../docs');
@ -28,20 +29,13 @@ if (!fs.existsSync(ROOT_DIR)) {
  fs.mkdirSync(ROOT_DIR);
 }
-// INFO Logging helper
+Object.keys(rustMethods).forEach((group) => {
-function info (log) {
+  Object.keys(rustMethods[group]).forEach((method) => {
-  console.log(chalk.blue(`INFO:\t${log}`));
+    if (interfaces[group] == null || interfaces[group][method] == null) {
-}
+      error(`${group}_${method} is defined in Rust traits, but not in js/src/jsonrpc/interfaces`);
 // WARN Logging helper
 function warn (log) {
  console.warn(chalk.yellow(`WARN:\t${log}`));
 }
 // ERROR Logging helper
 function error (log) {
  console.error(chalk.red(`ERROR:\t${log}`));
    }
  });
 });
 function printType (type) {
  return type.print || `\`${type.name}\``;
@ -291,7 +285,8 @@ Object.keys(interfaces).sort().forEach((group) => {
  Object.keys(spec).sort(methodComparator).forEach((iname) => {
    const method = spec[iname];
-    const name = `${group.replace(/_.*$/, '')}_${iname}`;
+    const groupName = group.replace(/_.*$/, '');
    const name = `${groupName}_${iname}`;
    if (method.nodoc || method.deprecated) {
      info(`Skipping ${name}: ${method.nodoc || 'Deprecated'}`);
@ -299,6 +294,10 @@ Object.keys(interfaces).sort().forEach((group) => {
      return;
    }
    if (rustMethods[groupName] == null || rustMethods[groupName][iname] == null) {
      error(`${name} is defined in js/src/jsonrpc/interfaces, but not in Rust traits`);
    }
    const desc = method.desc;
    const params = buildParameters(method.params);
    const returns = `- ${formatType(method.returns)}`;
--- a/js/scripts/helpers/log.js
+++ b/js/scripts/helpers/log.js
@ -0,0 +1,32 @@
 // Copyright 2015-2017 Parity Technologies (UK) Ltd.
 // This file is part of Parity.
 // Parity is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 // Parity is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 import chalk from 'chalk';
 // INFO Logging helper
 export function info (log) {
  console.log(chalk.blue(`INFO:\t${log}`));
 }
 // WARN Logging helper
 export function warn (log) {
  console.warn(chalk.yellow(`WARN:\t${log}`));
 }
 // ERROR Logging helper
 export function error (log) {
  console.error(chalk.red(`ERROR:\t${log}`));
 }
--- a/js/scripts/helpers/parsed-rpc-traits.js
+++ b/js/scripts/helpers/parsed-rpc-traits.js
@ -0,0 +1,81 @@
 // Copyright 2015-2017 Parity Technologies (UK) Ltd.
 // This file is part of Parity.
 // Parity is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 // Parity is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 import fs from 'fs';
 import path from 'path';
 // ```js
 // rustMethods['eth']['call'] === true
 // ```
 const rustMethods = {};
 export default rustMethods;
 // Get a list of JSON-RPC from Rust trait source code
 function parseMethodsFromRust (source) {
  // Matching the custom `rpc` attribute with it's doc comment
  const attributePattern = /((?:\s*\/\/\/.*$)*)\s*#\[rpc\(([^)]+)\)]/gm;
  const commentPattern = /\s*\/\/\/\s*/g;
  const separatorPattern = /\s*,\s*/g;
  const assignPattern = /([\S]+)\s*=\s*"([^"]*)"/;
  const ignorePattern = /@(ignore|deprecated|unimplemented|alias)\b/i;
  const methods = [];
  source.toString().replace(attributePattern, (match, comment, props) => {
    comment = comment.replace(commentPattern, '\n').trim();
    // Skip deprecated methods
    if (ignorePattern.test(comment)) {
      return match;
    }
    props.split(separatorPattern).forEach((prop) => {
      const [, key, value] = prop.split(assignPattern) || [];
      if (key === 'name' && value != null) {
        methods.push(value);
      }
    });
    return match;
  });
  return methods;
 }
 // Get a list of all JSON-RPC methods from all defined traits
 function getMethodsFromRustTraits () {
  const traitsDir = path.join(__dirname, '../../../rpc/src/v1/traits');
  return fs.readdirSync(traitsDir)
            .filter((name) => name !== 'mod.rs' && /\.rs$/.test(name))
            .map((name) => fs.readFileSync(path.join(traitsDir, name)))
            .map(parseMethodsFromRust)
            .reduce((a, b) => a.concat(b));
 }
 getMethodsFromRustTraits().sort().forEach((method) => {
  const [group, name] = method.split('_');
  // Skip methods with malformed names
  if (group == null || name == null) {
    return;
  }
  rustMethods[group] = rustMethods[group] || {};
  rustMethods[group][name] = true;
 });
--- a/js/src/api/subscriptions/eth.js
+++ b/js/src/api/subscriptions/eth.js
@ -23,6 +23,7 @@ export default class Eth {
    this._started = false;
    this._lastBlock = new BigNumber(-1);
    this._pollTimerId = null;
  }
  get isStarted () {
@ -37,7 +38,7 @@ export default class Eth {
  _blockNumber = () => {
    const nextTimeout = (timeout = 1000) => {
-      setTimeout(() => {
+      this._pollTimerId = setTimeout(() => {
        this._blockNumber();
      }, timeout);
    };
@ -57,6 +58,6 @@ export default class Eth {
        nextTimeout();
      })
-      .catch(nextTimeout);
+      .catch(() => nextTimeout());
  }
 }
--- a/js/src/api/subscriptions/personal.js
+++ b/js/src/api/subscriptions/personal.js
@ -20,6 +20,9 @@ export default class Personal {
    this._api = api;
    this._updateSubscriptions = updateSubscriptions;
    this._started = false;
    this._lastDefaultAccount = '0x0';
    this._pollTimerId = null;
  }
  get isStarted () {
@ -37,12 +40,35 @@ export default class Personal {
    ]);
  }
-  _defaultAccount = () => {
+  // FIXME: Because of the different API instances, the "wait for valid changes" approach
  // doesn't work. Since the defaultAccount is critical to operation, we poll in exactly
  // same way we do in ../eth (ala same as eth_blockNumber) and update. This should be moved
  // to pub-sub as it becomes available
  _defaultAccount = (timerDisabled = false) => {
    const nextTimeout = (timeout = 1000) => {
      if (!timerDisabled) {
        this._pollTimerId = setTimeout(() => {
          this._defaultAccount();
        }, timeout);
      }
    };
    if (!this._api.transport.isConnected) {
      nextTimeout(500);
      return;
    }
    return this._api.parity
      .defaultAccount()
      .then((defaultAccount) => {
        if (this._lastDefaultAccount !== defaultAccount) {
          this._lastDefaultAccount = defaultAccount;
          this._updateSubscriptions('parity_defaultAccount', null, defaultAccount);
-      });
+        }
        nextTimeout();
      })
      .catch(() => nextTimeout());
  }
  _listAccounts = () => {
@ -54,15 +80,21 @@ export default class Personal {
  }
  _accountsInfo = () => {
-    return Promise
+    return this._api.parity
-      .all([
+      .accountsInfo()
-        this._api.parity.accountsInfo(),
+      .then((info) => {
        this._api.parity.allAccountsInfo()
      ])
      .then(([info, allInfo]) => {
        this._updateSubscriptions('parity_accountsInfo', null, info);
        return this._api.parity
          .allAccountsInfo()
          .catch(() => {
            // NOTE: This fails on non-secure APIs, swallow error
            return {};
          })
          .then((allInfo) => {
            this._updateSubscriptions('parity_allAccountsInfo', null, allInfo);
          });
      });
  }
  _loggingSubscribe () {
@ -89,7 +121,7 @@ export default class Personal {
        case 'parity_setDappsAddresses':
        case 'parity_setNewDappsWhitelist':
-          this._defaultAccount();
+          this._defaultAccount(true);
          return;
      }
    });
--- a/js/src/api/subscriptions/personal.spec.js
+++ b/js/src/api/subscriptions/personal.spec.js
@ -36,6 +36,9 @@ function stubApi (accounts, info) {
  return {
    _calls,
    transport: {
      isConnected: true
    },
    parity: {
      accountsInfo: () => {
        const stub = sinon.stub().resolves(info || TEST_INFO)();
--- a/js/src/contracts/verification.js
+++ b/js/src/contracts/verification.js
@ -20,23 +20,23 @@ export const checkIfVerified = (contract, account) => {
  return contract.instance.certified.call({}, [account]);
 };
-export const checkIfRequested = (contract, account) => {
+export const findLastRequested = (contract, account) => {
  let subId = null;
  let resolved = false;
  return new Promise((resolve, reject) => {
    contract
      .subscribe('Requested', {
-        fromBlock: 0, toBlock: 'pending'
+        fromBlock: 0,
        toBlock: 'pending',
        limit: 1,
        topics: [account]
      }, (err, logs) => {
        if (err) {
          return reject(err);
        }
        const e = logs.find((l) => {
          return l.type === 'mined' && l.params.who && l.params.who.value === account;
        });
-        resolve(e ? e.transactionHash : false);
+        resolve(logs[0] || null);
        resolved = true;
        if (subId) {
--- a/js/src/dapps/basiccoin/Application/application.js
+++ b/js/src/dapps/basiccoin/Application/application.js
@ -45,7 +45,7 @@ export default class Application extends Component {
  }
  componentDidMount () {
-    this.attachInstance();
+    return this.attachInstance();
  }
  render () {
@ -80,12 +80,12 @@ export default class Application extends Component {
  }
  attachInstance () {
-    Promise
+    return Promise
      .all([
-        attachInstances(),
+        api.parity.accountsInfo(),
-        api.parity.accountsInfo()
+        attachInstances()
      ])
-      .then(([{ managerInstance, registryInstance, tokenregInstance }, accountsInfo]) => {
+      .then(([accountsInfo, { managerInstance, registryInstance, tokenregInstance }]) => {
        accountsInfo = accountsInfo || {};
        this.setState({
          loading: false,
--- a/js/src/dapps/basiccoin/Deploy/Deployment/deployment.js
+++ b/js/src/dapps/basiccoin/Deploy/Deployment/deployment.js
@ -17,7 +17,6 @@
 import React, { Component, PropTypes } from 'react';
 import { api } from '../../parity';
 import AddressSelect from '../../AddressSelect';
 import Container from '../../Container';
 import styles from './deployment.css';
@ -122,36 +121,13 @@ export default class Deployment extends Component {
  }
  renderForm () {
    const { accounts } = this.context;
    const { baseText, name, nameError, tla, tlaError, totalSupply, totalSupplyError } = this.state;
    const hasError = !!(nameError || tlaError || totalSupplyError);
    const error = `${styles.input} ${styles.error}`;
    const addresses = Object.keys(accounts);
    // <div className={ styles.input }>
    //   <label>global registration</label>
    //   <select onChange={ this.onChangeRegistrar }>
    //     <option value='no'>No, only for me</option>
    //     <option value='yes'>Yes, for everybody</option>
    //   </select>
    //   <div className={ styles.hint }>
    //     register on network (fee: { globalFeeText }ETH)
    //   </div>
    // </div>
    return (
      <Container>
        <div className={ styles.form }>
          <div className={ styles.input }>
            <label>deployment account</label>
            <AddressSelect
              addresses={ addresses }
              onChange={ this.onChangeFrom }
            />
            <div className={ styles.hint }>
              the owner account to deploy from
            </div>
          </div>
          <div className={ nameError ? error : styles.input }>
            <label>token name</label>
            <input
@ -206,12 +182,6 @@ export default class Deployment extends Component {
    );
  }
  onChangeFrom = (event) => {
    const fromAddress = event.target.value;
    this.setState({ fromAddress });
  }
  onChangeName = (event) => {
    const name = event.target.value;
    const nameError = name && (name.length > 2) && (name.length < 32)
@ -271,7 +241,7 @@ export default class Deployment extends Component {
  onDeploy = () => {
    const { managerInstance, registryInstance, tokenregInstance } = this.context;
-    const { base, deployBusy, fromAddress, globalReg, globalFee, name, nameError, tla, tlaError, totalSupply, totalSupplyError } = this.state;
+    const { base, deployBusy, globalReg, globalFee, name, nameError, tla, tlaError, totalSupply, totalSupplyError } = this.state;
    const hasError = !!(nameError || tlaError || totalSupplyError);
    if (hasError || deployBusy) {
@ -281,14 +251,18 @@ export default class Deployment extends Component {
    const tokenreg = (globalReg ? tokenregInstance : registryInstance).address;
    const values = [base.mul(totalSupply), tla, name, tokenreg];
    const options = {
      from: fromAddress,
      value: globalReg ? globalFee : 0
    };
    this.setState({ deployBusy: true, deployState: 'Estimating gas for the transaction' });
-    managerInstance
+    return api.parity
-      .deploy.estimateGas(options, values)
+      .defaultAccount()
      .then((defaultAddress) => {
        options.from = defaultAddress;
        return managerInstance.deploy.estimateGas(options, values);
      })
      .then((gas) => {
        this.setState({ deployState: 'Gas estimated, Posting transaction to the network' });
--- a/js/src/dapps/basiccoin/services.js
+++ b/js/src/dapps/basiccoin/services.js
@ -25,6 +25,8 @@ let registryInstance;
 const registries = {};
 const subscriptions = {};
 let defaultSubscriptionId;
 let nextSubscriptionId = 1000;
 let isTest = false;
@ -65,6 +67,20 @@ export function unsubscribeEvents (subscriptionId) {
  delete subscriptions[subscriptionId];
 }
 export function subscribeDefaultAddress (callback) {
  return api
    .subscribe('parity_defaultAccount', callback)
    .then((subscriptionId) => {
      defaultSubscriptionId = subscriptionId;
      return defaultSubscriptionId;
    });
 }
 export function unsubscribeDefaultAddress () {
  return api.unsubscribe(defaultSubscriptionId);
 }
 function pollEvents () {
  const loop = Object.values(subscriptions);
  const timeout = () => setTimeout(pollEvents, 1000);
--- a/js/src/dapps/githubhint/Application/application.js
+++ b/js/src/dapps/githubhint/Application/application.js
@ -17,10 +17,9 @@
 import React, { Component } from 'react';
 import { api } from '../parity';
-import { attachInterface } from '../services';
+import { attachInterface, subscribeDefaultAddress, unsubscribeDefaultAddress } from '../services';
 import Button from '../Button';
 import Events from '../Events';
 import IdentityIcon from '../IdentityIcon';
 import Loading from '../Loading';
 import styles from './application.css';
@ -32,7 +31,7 @@ let nextEventId = 0;
 export default class Application extends Component {
  state = {
-    fromAddress: null,
+    defaultAddress: null,
    loading: true,
    url: '',
    urlError: null,
@ -47,19 +46,32 @@ export default class Application extends Component {
    registerType: 'file',
    repo: '',
    repoError: null,
    subscriptionId: null,
    events: {},
    eventIds: []
  }
  componentDidMount () {
-    attachInterface()
+    return Promise
-      .then((state) => {
+      .all([
-        this.setState(state, () => {
+        attachInterface(),
-          this.setState({ loading: false });
+        subscribeDefaultAddress((error, defaultAddress) => {
-        });
+          if (!error) {
            this.setState({ defaultAddress });
          }
        })
      ])
      .then(([state]) => {
        this.setState(Object.assign({}, state, {
          loading: false
        }));
      });
  }
  componentWillUnmount () {
    return unsubscribeDefaultAddress();
  }
  render () {
    const { loading } = this.state;
@ -75,12 +87,14 @@ export default class Application extends Component {
  }
  renderPage () {
-    const { fromAddress, registerBusy, url, urlError, contentHash, contentHashError, contentHashOwner, commit, commitError, registerType, repo, repoError } = this.state;
+    const { defaultAddress, registerBusy, url, urlError, contentHash, contentHashError, contentHashOwner, commit, commitError, registerType, repo, repoError } = this.state;
    let hashClass = null;
    if (contentHashError) {
-      hashClass = contentHashOwner !== fromAddress ? styles.hashError : styles.hashWarning;
+      hashClass = contentHashOwner !== defaultAddress
        ? styles.hashError
        : styles.hashWarning;
    } else if (contentHash) {
      hashClass = styles.hashOk;
    }
@ -166,20 +180,13 @@ export default class Application extends Component {
  }
  renderButtons () {
-    const { accounts, fromAddress, urlError, repoError, commitError, contentHashError, contentHashOwner } = this.state;
+    const { defaultAddress, urlError, repoError, commitError, contentHashError, contentHashOwner } = this.state;
    const account = accounts[fromAddress];
    return (
      <div className={ styles.buttons }>
        <div className={ styles.addressSelect }>
          <Button invert onClick={ this.onSelectFromAddress }>
            <IdentityIcon address={ account.address } />
            <div>{ account.name || account.address }</div>
          </Button>
        </div>
        <Button
          onClick={ this.onClickRegister }
-          disabled={ (contentHashError && contentHashOwner !== fromAddress) || urlError || repoError || commitError }
+          disabled={ (contentHashError && contentHashOwner !== defaultAddress) || urlError || repoError || commitError }
        >register url</Button>
      </div>
    );
@ -294,11 +301,11 @@ export default class Application extends Component {
  }
  onClickRegister = () => {
-    const { commit, commitError, contentHashError, contentHashOwner, fromAddress, url, urlError, registerType, repo, repoError } = this.state;
+    const { defaultAddress, commit, commitError, contentHashError, contentHashOwner, url, urlError, registerType, repo, repoError } = this.state;
    // TODO: No errors are currently set, validation to be expanded and added for each
    // field (query is fast to pick up the issues, so not burning atm)
-    if ((contentHashError && contentHashOwner !== fromAddress) || repoError || urlError || commitError) {
+    if ((contentHashError && contentHashOwner !== defaultAddress) || repoError || urlError || commitError) {
      return;
    }
@ -368,13 +375,15 @@ export default class Application extends Component {
  }
  registerContent (contentRepo, contentCommit) {
-    const { contentHash, fromAddress, instance } = this.state;
+    const { defaultAddress, contentHash, instance } = this.state;
-    contentCommit = contentCommit.substr(0, 2) === '0x' ? contentCommit : `0x${contentCommit}`;
+    contentCommit = contentCommit.substr(0, 2) === '0x'
      ? contentCommit
      : `0x${contentCommit}`;
    const eventId = nextEventId++;
    const values = [contentHash, contentRepo, contentCommit];
-    const options = { from: fromAddress };
+    const options = { from: defaultAddress };
    this.setState({
      eventIds: [eventId].concat(this.state.eventIds),
@ -383,7 +392,7 @@ export default class Application extends Component {
          contentHash,
          contentRepo,
          contentCommit,
-          fromAddress,
+          defaultAddress,
          registerBusy: true,
          registerState: 'Estimating gas for the transaction',
          timestamp: new Date()
@ -421,11 +430,11 @@ export default class Application extends Component {
  }
  registerUrl (contentUrl) {
-    const { contentHash, fromAddress, instance } = this.state;
+    const { contentHash, defaultAddress, instance } = this.state;
    const eventId = nextEventId++;
    const values = [contentHash, contentUrl];
-    const options = { from: fromAddress };
+    const options = { from: defaultAddress };
    this.setState({
      eventIds: [eventId].concat(this.state.eventIds),
@ -433,7 +442,7 @@ export default class Application extends Component {
        [eventId]: {
          contentHash,
          contentUrl,
-          fromAddress,
+          defaultAddress,
          registerBusy: true,
          registerState: 'Estimating gas for the transaction',
          timestamp: new Date()
@ -470,25 +479,6 @@ export default class Application extends Component {
    );
  }
  onSelectFromAddress = () => {
    const { accounts, fromAddress } = this.state;
    const addresses = Object.keys(accounts);
    let index = 0;
    addresses.forEach((address, _index) => {
      if (address === fromAddress) {
        index = _index;
      }
    });
    index++;
    if (index >= addresses.length) {
      index = 0;
    }
    this.setState({ fromAddress: addresses[index] });
  }
  lookupHash (url) {
    const { instance } = this.state;
--- a/js/src/dapps/githubhint/services.js
+++ b/js/src/dapps/githubhint/services.js
@ -17,48 +17,44 @@
 import * as abis from '~/contracts/abi';
 import { api } from './parity';
 let defaultSubscriptionId;
 export function attachInterface () {
  return api.parity
    .registryAddress()
    .then((registryAddress) => {
      console.log(`the registry was found at ${registryAddress}`);
-      const registry = api.newContract(abis.registry, registryAddress).instance;
+      return api
-
+        .newContract(abis.registry, registryAddress).instance
-      return Promise
+        .getAddress.call({}, [api.util.sha3('githubhint'), 'A']);
        .all([
          registry.getAddress.call({}, [api.util.sha3('githubhint'), 'A']),
          api.parity.accountsInfo()
        ]);
    })
-    .then(([address, accountsInfo]) => {
+    .then((address) => {
      console.log(`githubhint was found at ${address}`);
      const contract = api.newContract(abis.githubhint, address);
      const accounts = Object
        .keys(accountsInfo)
        .reduce((obj, address) => {
          const account = accountsInfo[address];
          return Object.assign(obj, {
            [address]: {
              address,
              name: account.name
            }
          });
        }, {});
      const fromAddress = Object.keys(accounts)[0];
      return {
        accounts,
        address,
        accountsInfo,
        contract,
-        instance: contract.instance,
+        instance: contract.instance
        fromAddress
      };
    })
    .catch((error) => {
      console.error('attachInterface', error);
    });
 }
 export function subscribeDefaultAddress (callback) {
  return api
    .subscribe('parity_defaultAccount', callback)
    .then((subscriptionId) => {
      defaultSubscriptionId = subscriptionId;
      return defaultSubscriptionId;
    });
 }
 export function unsubscribeDefaultAddress () {
  return api.unsubscribe(defaultSubscriptionId);
 }
--- a/js/src/dapps/githubhint/IdentityIcon/identityIcon.css
+++ b/js/src/dapps/githubhint/IdentityIcon/identityIcon.css
--- a/js/src/dapps/githubhint/IdentityIcon/identityIcon.js
+++ b/js/src/dapps/githubhint/IdentityIcon/identityIcon.js
--- a/js/src/dapps/githubhint/IdentityIcon/index.js
+++ b/js/src/dapps/githubhint/IdentityIcon/index.js
--- a/js/src/dapps/localtx/Transaction/transaction.js
+++ b/js/src/dapps/localtx/Transaction/transaction.js
@ -22,7 +22,7 @@ import { api } from '../parity';
 import styles from './transaction.css';
-import IdentityIcon from '../../githubhint/IdentityIcon';
+import IdentityIcon from '../IdentityIcon';
 class BaseTransaction extends Component {
  shortHash (hash) {
--- a/js/src/dapps/registry/Lookup/actions.js
+++ b/js/src/dapps/registry/Lookup/actions.js
@ -82,6 +82,7 @@ export const ownerLookup = (name) => (dispatch, getState) => {
    return;
  }
  name = name.toLowerCase();
  dispatch(ownerLookupStart(name));
  return getOwner(contract, name)
--- a/js/src/dapps/signaturereg/Application/application.js
+++ b/js/src/dapps/signaturereg/Application/application.js
@ -30,7 +30,6 @@ export default class Application extends Component {
  state = {
    accounts: {},
    address: null,
    fromAddress: null,
    accountsInfo: {},
    blockNumber: new BigNumber(0),
    contract: null,
@ -41,11 +40,9 @@ export default class Application extends Component {
  }
  componentDidMount () {
-    attachInterface()
+    return attachInterface()
      .then((state) => {
-        this.setState(state, () => {
+        this.setState(Object.assign({}, state, { loading: false }));
          this.setState({ loading: false });
        });
        return attachBlockNumber(state.instance, (state) => {
          this.setState(state);
@ -86,17 +83,14 @@ export default class Application extends Component {
  }
  renderImport () {
-    const { accounts, fromAddress, instance, showImport } = this.state;
+    const { instance, showImport } = this.state;
    if (showImport) {
      return (
        <Import
          accounts={ accounts }
          fromAddress={ fromAddress }
          instance={ instance }
          visible={ showImport }
          onClose={ this.toggleImport }
          onSetFromAddress={ this.setFromAddress }
        />
      );
    }
@ -124,10 +118,4 @@ export default class Application extends Component {
      showImport: !this.state.showImport
    });
  }
  setFromAddress = (fromAddress) => {
    this.setState({
      fromAddress
    });
  }
 }
--- a/js/src/dapps/signaturereg/Import/import.js
+++ b/js/src/dapps/signaturereg/Import/import.js
@ -19,18 +19,14 @@ import React, { Component, PropTypes } from 'react';
 import { api } from '../parity';
 import { callRegister, postRegister } from '../services';
 import Button from '../Button';
 import IdentityIcon from '../IdentityIcon';
 import styles from './import.css';
 export default class Import extends Component {
  static propTypes = {
    accounts: PropTypes.object.isRequired,
    fromAddress: PropTypes.string.isRequired,
    instance: PropTypes.object.isRequired,
    visible: PropTypes.bool.isRequired,
-    onClose: PropTypes.func.isRequired,
+    onClose: PropTypes.func.isRequired
    onSetFromAddress: PropTypes.func.isRequired
  }
  state = {
@ -83,21 +79,12 @@ export default class Import extends Component {
  }
  renderRegister () {
    const { accounts, fromAddress } = this.props;
    const account = accounts[fromAddress];
    const count = this.countFunctions();
    let buttons = null;
    if (count) {
      buttons = (
        <div className={ styles.buttonrow }>
          <div className={ styles.addressSelect }>
            <Button invert onClick={ this.onSelectFromAddress }>
              <IdentityIcon address={ account.address } />
              <div>{ account.name || account.address }</div>
            </Button>
          </div>
          <Button onClick={ this.onRegister }>
            register functions
          </Button>
@ -197,15 +184,15 @@ export default class Import extends Component {
  }
  onRegister = () => {
-    const { instance, fromAddress, onClose } = this.props;
+    const { instance, onClose } = this.props;
    const { functions, fnstate } = this.state;
-    Promise
+    return Promise
      .all(
        functions
          .filter((fn) => !fn.constant)
          .filter((fn) => fnstate[fn.signature] === 'fntodo')
-          .map((fn) => postRegister(instance, fn.id, { from: fromAddress }))
+          .map((fn) => postRegister(instance, fn.id, {}))
      )
      .then(() => {
        onClose();
@ -214,23 +201,4 @@ export default class Import extends Component {
        console.error('onRegister', error);
      });
  }
  onSelectFromAddress = () => {
    const { accounts, fromAddress, onSetFromAddress } = this.props;
    const addresses = Object.keys(accounts);
    let index = 0;
    addresses.forEach((address, _index) => {
      if (address === fromAddress) {
        index = _index;
      }
    });
    index++;
    if (index >= addresses.length) {
      index = 0;
    }
    onSetFromAddress(addresses[index]);
  }
 }
--- a/js/src/dapps/signaturereg/services.js
+++ b/js/src/dapps/signaturereg/services.js
@ -166,8 +166,13 @@ export function callRegister (instance, id, options = {}) {
 }
 export function postRegister (instance, id, options = {}) {
-  return instance.register
+  return api.parity
-    .estimateGas(options, [id])
+    .defaultAccount()
    .then((defaultAddress) => {
      options.from = defaultAddress;
      return instance.register.estimateGas(options, [id]);
    })
    .then((gas) => {
      options.gas = gas.mul(1.2).toFixed(0);
      console.log('postRegister', `gas estimated at ${gas.toFormat(0)}, setting to ${gas.mul(1.2).toFormat(0)}`);
--- a/js/src/jsonrpc/index.spec.js
+++ b/js/src/jsonrpc/index.spec.js
@ -14,8 +14,6 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 import fs from 'fs';
 import path from 'path';
 import interfaces from './';
 import * as customTypes from './types';
@ -27,91 +25,13 @@ function verifyType (obj) {
  }
 }
 // Get a list of JSON-RPC from Rust trait source code
 function parseMethodsFromRust (source) {
  // Matching the custom `rpc` attribute with it's doc comment
  const attributePattern = /((?:\s*\/\/\/.*$)*)\s*#\[rpc\(([^)]+)\)]/gm;
  const commentPattern = /\s*\/\/\/\s*/g;
  const separatorPattern = /\s*,\s*/g;
  const assignPattern = /([\S]+)\s*=\s*"([^"]*)"/;
  const ignorePattern = /@(ignore|deprecated|unimplemented|alias)\b/i;
  const methods = [];
  source.toString().replace(attributePattern, (match, comment, props) => {
    comment = comment.replace(commentPattern, '\n').trim();
    // Skip deprecated methods
    if (ignorePattern.test(comment)) {
      return match;
    }
    props.split(separatorPattern).forEach((prop) => {
      const [, key, value] = prop.split(assignPattern) || [];
      if (key === 'name' && value != null) {
        methods.push(value);
      }
    });
    return match;
  });
  return methods;
 }
 // Get a list of all JSON-RPC methods from all defined traits
 function getMethodsFromRustTraits () {
  const traitsDir = path.join(__dirname, '../../../rpc/src/v1/traits');
  return fs.readdirSync(traitsDir)
            .filter((name) => name !== 'mod.rs' && /\.rs$/.test(name))
            .map((name) => fs.readFileSync(path.join(traitsDir, name)))
            .map(parseMethodsFromRust)
            .reduce((a, b) => a.concat(b));
 }
 const rustMethods = {};
 getMethodsFromRustTraits().sort().forEach((method) => {
  const [group, name] = method.split('_');
  // Skip methods with malformed names
  if (group == null || name == null) {
    return;
  }
  rustMethods[group] = rustMethods[group] || {};
  rustMethods[group][name] = true;
 });
 describe('jsonrpc/interfaces', () => {
  describe('Rust trait methods', () => {
    Object.keys(rustMethods).forEach((group) => {
      describe(group, () => {
        Object.keys(rustMethods[group]).forEach((name) => {
          describe(name, () => {
            it('has a defined JS interface', () => {
              expect(interfaces[group][name]).to.exist;
            });
          });
        });
      });
    });
  });
  Object.keys(interfaces).forEach((group) => {
    describe(group, () => {
      Object.keys(interfaces[group]).forEach((name) => {
        const method = interfaces[group][name];
        describe(name, () => {
          if (!method.nodoc) {
            it('is present in Rust codebase', () => {
              expect(rustMethods[group][name]).to.exist;
            });
          }
          it('has the correct interface', () => {
            expect(method.desc).to.be.a('string');
            expect(method.params).to.be.an('array');
--- a/js/src/modals/AddDapps/addDapps.css
+++ b/js/src/modals/AddDapps/addDapps.css
@ -15,15 +15,24 @@
 /* along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 */
 .modal {
  flex-direction: column;
 }
 .container {
  margin-top: 1.5em;
  overflow-y: auto;
 }
 .description {
  margin-top: .5em !important;
 }
 .list {
  margin-bottom: 1.5em;
  .background {
-    background: rgba(255, 255, 255, 0.2);
+    padding: 0.5em 0;
    margin: 0 -1.5em;
    padding: 0.5em 1.5em;
  }
  .header {
@ -37,3 +46,26 @@
    opacity: 0.75;
  }
 }
 .selectIcon {
  position: absolute;
  right: 0.5em;
  top: 0.5em;
 }
 .selected,
 .unselected {
  position: relative;
 }
 .unselected {
  background: rgba(0, 0, 0, 0.4) !important;
  .selectIcon {
    opacity: 0.15;
  }
 }
 .selected {
  background: rgba(255, 255, 255, 0.15) !important;
 }
--- a/js/src/modals/AddDapps/addDapps.js
+++ b/js/src/modals/AddDapps/addDapps.js
@ -14,14 +14,12 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 import { Checkbox } from 'material-ui';
 import { List, ListItem } from 'material-ui/List';
 import { observer } from 'mobx-react';
 import React, { Component, PropTypes } from 'react';
 import { FormattedMessage } from 'react-intl';
-import { Modal, Button } from '~/ui';
+import { ContainerTitle, DappCard, Portal, SectionList } from '~/ui';
-import { DoneIcon } from '~/ui/Icons';
+import { CheckIcon } from '~/ui/Icons';
 import styles from './addDapps.css';
@ -39,32 +37,23 @@ export default class AddDapps extends Component {
    }
    return (
-      <Modal
+      <Portal
-        actions={ [
+        className={ styles.modal }
-          <Button
+        onClose={ store.closeModal }
-            icon={ <DoneIcon /> }
+        open
-            key='done'
+      >
-            label={
+        <ContainerTitle
              <FormattedMessage
                id='dapps.add.button.done'
                defaultMessage='Done'
              />
            }
            onClick={ store.closeModal }
          />
        ] }
        compact
          title={
            <FormattedMessage
              id='dapps.add.label'
              defaultMessage='visible applications'
            />
          }
-        visible
+        />
-      >
+        <div className={ styles.container }>
          <div className={ styles.warning } />
          {
-          this.renderList(store.sortedLocal,
+            this.renderList(store.sortedLocal, store.displayApps,
              <FormattedMessage
                id='dapps.add.local.label'
                defaultMessage='Applications locally available'
@ -76,7 +65,7 @@ export default class AddDapps extends Component {
            )
          }
          {
-          this.renderList(store.sortedBuiltin,
+            this.renderList(store.sortedBuiltin, store.displayApps,
              <FormattedMessage
                id='dapps.add.builtin.label'
                defaultMessage='Applications bundled with Parity'
@ -88,7 +77,7 @@ export default class AddDapps extends Component {
            )
          }
          {
-          this.renderList(store.sortedNetwork,
+            this.renderList(store.sortedNetwork, store.displayApps,
              <FormattedMessage
                id='dapps.add.network.label'
                defaultMessage='Applications on the global network'
@ -99,11 +88,12 @@ export default class AddDapps extends Component {
              />
            )
          }
-      </Modal>
+        </div>
      </Portal>
    );
  }
-  renderList (items, header, byline) {
+  renderList (items, visibleItems, header, byline) {
    if (!items || !items.length) {
      return null;
    }
@ -114,41 +104,40 @@ export default class AddDapps extends Component {
          <div className={ styles.header }>{ header }</div>
          <div className={ styles.byline }>{ byline }</div>
        </div>
-        <List>
+        <SectionList
-          { items.map(this.renderApp) }
+          items={ items }
-        </List>
+          noStretch
          renderItem={ this.renderApp }
        />
      </div>
    );
  }
  renderApp = (app) => {
    const { store } = this.props;
-    const isHidden = !store.displayApps[app.id].visible;
+    const isVisible = store.displayApps[app.id].visible;
-    const onCheck = () => {
+    const onClick = () => {
-      if (isHidden) {
+      if (isVisible) {
        store.showApp(app.id);
      } else {
        store.hideApp(app.id);
      } else {
        store.showApp(app.id);
      }
    };
    return (
-      <ListItem
+      <DappCard
        app={ app }
        className={
          isVisible
            ? styles.selected
            : styles.unselected
        }
        key={ app.id }
-        leftCheckbox={
+        onClick={ onClick }
-          <Checkbox
+      >
-            checked={ !isHidden }
+        <CheckIcon className={ styles.selectIcon } />
-            onCheck={ onCheck }
+      </DappCard>
          />
        }
        primaryText={ app.name }
        secondaryText={
          <div className={ styles.description }>
            { app.description }
          </div>
        }
      />
    );
  }
 }
--- a/js/src/modals/AddDapps/addDapps.spec.js
+++ b/js/src/modals/AddDapps/addDapps.spec.js
@ -33,13 +33,13 @@ describe('modals/AddDapps', () => {
    it('does not render the modal with modalOpen = false', () => {
      expect(
-        renderShallow({ modalOpen: false }).find('Connect(Modal)')
+        renderShallow({ modalOpen: false }).find('Portal')
      ).to.have.length(0);
    });
    it('does render the modal with modalOpen = true', () => {
      expect(
-        renderShallow({ modalOpen: true }).find('Connect(Modal)')
+        renderShallow({ modalOpen: true }).find('Portal')
      ).to.have.length(1);
    });
  });
--- a/js/src/modals/Verification/GatherData/gatherData.css
+++ b/js/src/modals/Verification/GatherData/gatherData.css
@ -30,6 +30,10 @@
  margin-left: .5em;
 }
 .field {
  margin-bottom: .5em;
 }
 .terms {
  line-height: 1.3;
  opacity: .7;
--- a/js/src/modals/Verification/GatherData/gatherData.js
+++ b/js/src/modals/Verification/GatherData/gatherData.js
@ -31,19 +31,22 @@ import emailTermsOfService from '~/3rdparty/email-verification/terms-of-service'
 import { howSMSVerificationWorks, howEmailVerificationWorks } from '../how-it-works';
 import styles from './gatherData.css';
 const boolOfError = PropTypes.oneOfType([ PropTypes.bool, PropTypes.instanceOf(Error) ]);
 export default class GatherData extends Component {
  static propTypes = {
    fee: React.PropTypes.instanceOf(BigNumber),
    fields: PropTypes.array.isRequired,
-    hasRequested: nullableProptype(PropTypes.bool.isRequired),
+    accountHasRequested: nullableProptype(PropTypes.bool.isRequired),
    isServerRunning: nullableProptype(PropTypes.bool.isRequired),
-    isVerified: nullableProptype(PropTypes.bool.isRequired),
+    isAbleToRequest: nullableProptype(boolOfError.isRequired),
    accountIsVerified: nullableProptype(PropTypes.bool.isRequired),
    method: PropTypes.string.isRequired,
    setConsentGiven: PropTypes.func.isRequired
  }
  render () {
-    const { method, isVerified } = this.props;
+    const { method, accountIsVerified } = this.props;
    const termsOfService = method === 'email' ? emailTermsOfService : smsTermsOfService;
    const howItWorks = method === 'email' ? howEmailVerificationWorks : howSMSVerificationWorks;
@ -55,6 +58,7 @@ export default class GatherData extends Component {
        { this.renderCertified() }
        { this.renderRequested() }
        { this.renderFields() }
        { this.renderIfAbleToRequest() }
        <Checkbox
          className={ styles.spacing }
          label={
@ -63,7 +67,7 @@ export default class GatherData extends Component {
              defaultMessage='I agree to the terms and conditions below.'
            />
          }
-          disabled={ isVerified }
+          disabled={ accountIsVerified }
          onCheck={ this.consentOnChange }
        />
        <div className={ styles.terms }>{ termsOfService }</div>
@ -145,27 +149,27 @@ export default class GatherData extends Component {
  }
  renderCertified () {
-    const { isVerified } = this.props;
+    const { accountIsVerified } = this.props;
-    if (isVerified) {
+    if (accountIsVerified) {
      return (
        <div className={ styles.container }>
          <ErrorIcon />
          <p className={ styles.message }>
            <FormattedMessage
-              id='ui.verification.gatherData.isVerified.true'
+              id='ui.verification.gatherData.accountIsVerified.true'
              defaultMessage='Your account is already verified.'
            />
          </p>
        </div>
      );
-    } else if (isVerified === false) {
+    } else if (accountIsVerified === false) {
      return (
        <div className={ styles.container }>
          <SuccessIcon />
          <p className={ styles.message }>
            <FormattedMessage
-              id='ui.verification.gatherData.isVerified.false'
+              id='ui.verification.gatherData.accountIsVerified.false'
              defaultMessage='Your account is not verified yet.'
            />
          </p>
@ -175,7 +179,7 @@ export default class GatherData extends Component {
    return (
      <p className={ styles.message }>
        <FormattedMessage
-          id='ui.verification.gatherData.isVerified.pending'
+          id='ui.verification.gatherData.accountIsVerified.pending'
          defaultMessage='Checking if your account is verified…'
        />
      </p>
@ -183,33 +187,33 @@ export default class GatherData extends Component {
  }
  renderRequested () {
-    const { isVerified, hasRequested } = this.props;
+    const { accountIsVerified, accountHasRequested } = this.props;
    // If the account is verified, don't show that it has requested verification.
-    if (isVerified) {
+    if (accountIsVerified) {
      return null;
    }
-    if (hasRequested) {
+    if (accountHasRequested) {
      return (
        <div className={ styles.container }>
          <InfoIcon />
          <p className={ styles.message }>
            <FormattedMessage
-              id='ui.verification.gatherData.hasRequested.true'
+              id='ui.verification.gatherData.accountHasRequested.true'
-              defaultMessage='You already requested verification.'
+              defaultMessage='You already requested verification from this account.'
            />
          </p>
        </div>
      );
-    } else if (hasRequested === false) {
+    } else if (accountHasRequested === false) {
      return (
        <div className={ styles.container }>
          <SuccessIcon />
          <p className={ styles.message }>
            <FormattedMessage
-              id='ui.verification.gatherData.hasRequested.false'
+              id='ui.verification.gatherData.accountHasRequested.false'
-              defaultMessage='You did not request verification yet.'
+              defaultMessage='You did not request verification from this account yet.'
            />
          </p>
        </div>
@ -218,7 +222,7 @@ export default class GatherData extends Component {
    return (
      <p className={ styles.message }>
        <FormattedMessage
-          id='ui.verification.gatherData.hasRequested.pending'
+          id='ui.verification.gatherData.accountHasRequested.pending'
          defaultMessage='Checking if you requested verification…'
        />
      </p>
@ -226,7 +230,7 @@ export default class GatherData extends Component {
  }
  renderFields () {
-    const { isVerified, fields } = this.props;
+    const { accountIsVerified, fields } = this.props;
    const rendered = fields.map((field) => {
      const onChange = (_, v) => {
@ -236,11 +240,12 @@ export default class GatherData extends Component {
      return (
        <Input
          className={ styles.field }
          key={ field.key }
          label={ field.label }
          hint={ field.hint }
          error={ field.error }
-          disabled={ isVerified }
+          disabled={ accountIsVerified }
          onChange={ onChange }
          onSubmit={ onSubmit }
        />
@ -250,6 +255,36 @@ export default class GatherData extends Component {
    return (<div>{rendered}</div>);
  }
  renderIfAbleToRequest () {
    const { accountIsVerified, isAbleToRequest } = this.props;
    // If the account is verified, don't show a warning.
    // If the client is able to send the request, don't show a warning
    if (accountIsVerified || isAbleToRequest === true) {
      return null;
    }
    if (isAbleToRequest === null) {
      return (
        <p className={ styles.message }>
          <FormattedMessage
            id='ui.verification.gatherData.isAbleToRequest.pending'
            defaultMessage='Validating your input…'
          />
        </p>
      );
    } else if (isAbleToRequest) {
      return (
        <div className={ styles.container }>
          <ErrorIcon />
          <p className={ styles.message }>
            { isAbleToRequest.message }
          </p>
        </div>
      );
    }
  }
  consentOnChange = (_, consentGiven) => {
    this.props.setConsentGiven(consentGiven);
  }
--- a/js/src/modals/Verification/email-store.js
+++ b/js/src/modals/Verification/email-store.js
@ -16,6 +16,7 @@
 import { observable, computed, action } from 'mobx';
 import { sha3 } from '~/api/util/sha3';
 import { bytesToHex } from '~/api/util/format';
 import EmailVerificationABI from '~/contracts/abi/email-verification.json';
 import VerificationStore, {
@ -23,6 +24,8 @@ import VerificationStore, {
 } from './store';
 import { isServerRunning, hasReceivedCode, postToServer } from '~/3rdparty/email-verification';
 const ZERO20 = '0x0000000000000000000000000000000000000000';
 // name in the `BadgeReg.sol` contract
 const EMAIL_VERIFICATION = 'emailverification';
@ -44,9 +47,9 @@ export default class EmailVerificationStore extends VerificationStore {
    switch (this.step) {
      case LOADING:
-        return this.contract && this.fee && this.isVerified !== null && this.hasRequested !== null;
+        return this.contract && this.fee && this.accountIsVerified !== null && this.accountHasRequested !== null;
      case QUERY_DATA:
-        return this.isEmailValid && this.consentGiven;
+        return this.isEmailValid && this.consentGiven && this.isAbleToRequest === true;
      case QUERY_CODE:
        return this.requestTx && this.isCodeValid === true;
      case POSTED_CONFIRMATION:
@ -68,8 +71,53 @@ export default class EmailVerificationStore extends VerificationStore {
    return hasReceivedCode(this.email, this.account, this.isTestnet);
  }
  // If the email has already been used for verification of another account,
  // we prevent the user from wasting ETH to request another verification.
  @action setIfAbleToRequest = () => {
    const { isEmailValid } = this;
    if (!isEmailValid) {
      this.isAbleToRequest = true;
      return;
    }
    const { contract, email } = this;
    const emailHash = sha3.text(email);
    this.isAbleToRequest = null;
    contract
      .instance.reverse
      .call({}, [ emailHash ])
      .then((address) => {
        if (address === ZERO20) {
          this.isAbleToRequest = true;
        } else {
          this.isAbleToRequest = new Error('Another account has been verified using this e-mail.');
        }
      })
      .catch((err) => {
        this.error = 'Failed to check if able to send request: ' + err.message;
      });
  }
  // Determine the values relevant for checking if the last request contains
  // the same data as the current one.
  requestValues = () => [ sha3.text(this.email) ]
  shallSkipRequest = (currentValues) => {
    const { accountHasRequested } = this;
    const lastRequest = this.lastRequestValues;
    if (!accountHasRequested) {
      return Promise.resolve(false);
    }
    // If the last email verification `request` for the selected address contains
    // the same email as the current one, don't send another request to save ETH.
    const skip = currentValues[0] === bytesToHex(lastRequest.emailHash.value);
    return Promise.resolve(skip);
  }
  @action setEmail = (email) => {
    this.email = email;
  }
--- a/js/src/modals/Verification/sms-store.js
+++ b/js/src/modals/Verification/sms-store.js
@ -43,7 +43,7 @@ export default class SMSVerificationStore extends VerificationStore {
    switch (this.step) {
      case LOADING:
-        return this.contract && this.fee && this.isVerified !== null && this.hasRequested !== null;
+        return this.contract && this.fee && this.accountIsVerified !== null && this.accountHasRequested !== null;
      case QUERY_DATA:
        return this.isNumberValid && this.consentGiven;
      case QUERY_CODE:
@ -67,6 +67,18 @@ export default class SMSVerificationStore extends VerificationStore {
    return hasReceivedCode(this.number, this.account, this.isTestnet);
  }
  // SMS verification events don't contain the phone number, so we will have to
  // send a new request every single time. See below.
  @action setIfAbleToRequest = () => {
    this.isAbleToRequest = true;
  }
  // SMS verification `request` & `confirm` transactions and events don't contain the
  // phone number, so we will have to send a new request every single time. This may
  // cost the user more money, but given that it fails otherwise, it seems like a
  // reasonable tradeoff.
  shallSkipRequest = () => Promise.resolve(false)
  @action setNumber = (number) => {
    this.number = number;
  }
--- a/js/src/modals/Verification/store.js
+++ b/js/src/modals/Verification/store.js
@ -19,7 +19,7 @@ import { sha3 } from '~/api/util/sha3';
 import Contract from '~/api/contract';
 import Contracts from '~/contracts';
-import { checkIfVerified, checkIfRequested, awaitPuzzle } from '~/contracts/verification';
+import { checkIfVerified, findLastRequested, awaitPuzzle } from '~/contracts/verification';
 import { checkIfTxFailed, waitForConfirmations } from '~/util/tx';
 export const LOADING = 'fetching-contract';
@ -38,8 +38,10 @@ export default class VerificationStore {
  @observable contract = null;
  @observable fee = null;
-  @observable isVerified = null;
+  @observable accountIsVerified = null;
-  @observable hasRequested = null;
+  @observable accountHasRequested = null;
  @observable isAbleToRequest = null;
  @observable lastRequestValues = null;
  @observable isServerRunning = null;
  @observable consentGiven = false;
  @observable requestTx = null;
@ -68,6 +70,14 @@ export default class VerificationStore {
        console.error('verification: ' + this.error);
      }
    });
    autorun(() => {
      if (this.step !== QUERY_DATA) {
        return;
      }
      this.setIfAbleToRequest();
    });
  }
  @action load = () => {
@ -91,19 +101,20 @@ export default class VerificationStore {
        this.error = 'Failed to fetch the fee: ' + err.message;
      });
-    const isVerified = checkIfVerified(contract, account)
+    const accountIsVerified = checkIfVerified(contract, account)
-      .then((isVerified) => {
+      .then((accountIsVerified) => {
-        this.isVerified = isVerified;
+        this.accountIsVerified = accountIsVerified;
      })
      .catch((err) => {
        this.error = 'Failed to check if verified: ' + err.message;
      });
-    const hasRequested = checkIfRequested(contract, account)
+    const accountHasRequested = findLastRequested(contract, account)
-      .then((txHash) => {
+      .then((log) => {
-        this.hasRequested = !!txHash;
+        this.accountHasRequested = !!log;
-        if (txHash) {
+        if (log) {
-          this.requestTx = txHash;
+          this.lastRequestValues = log.params;
          this.requestTx = log.transactionHash;
        }
      })
      .catch((err) => {
@ -111,7 +122,7 @@ export default class VerificationStore {
      });
    Promise
-      .all([ isServerRunning, fee, isVerified, hasRequested ])
+      .all([ isServerRunning, fee, accountIsVerified, accountHasRequested ])
      .then(() => {
        this.step = QUERY_DATA;
      });
@ -150,24 +161,27 @@ export default class VerificationStore {
  requestValues = () => []
  @action sendRequest = () => {
-    const { api, account, contract, fee, hasRequested } = this;
+    const { api, account, contract, fee } = this;
    const request = contract.functions.find((fn) => fn.name === 'request');
    const options = { from: account, value: fee.toString() };
    const values = this.requestValues();
-    let chain = Promise.resolve();
+    this.shallSkipRequest(values)
      .then((skipRequest) => {
        if (skipRequest) {
          return;
        }
    if (!hasRequested) {
        this.step = POSTING_REQUEST;
-      chain = request.estimateGas(options, values)
+        return request.estimateGas(options, values)
          .then((gas) => {
            options.gas = gas.mul(1.2).toFixed(0);
            return request.postTransaction(options, values);
          })
          .then((handle) => {
-          // TODO: The "request rejected" error doesn't have any property to
+            // The "request rejected" error doesn't have any property to distinguish
-          // distinguish it from other errors, so we can't give a meaningful error here.
+            // it from other errors, so we can't give a meaningful error here.
            return api.pollMethod('parity_checkRequest', handle);
          })
          .then((txHash) => {
@ -181,9 +195,7 @@ export default class VerificationStore {
                return waitForConfirmations(api, txHash, 1);
              });
          });
-    }
+      })
    chain
      .then(() => this.checkIfReceivedCode())
      .then((hasReceived) => {
        if (hasReceived) {
--- a/js/src/modals/Verification/verification.js
+++ b/js/src/modals/Verification/verification.js
@ -15,6 +15,7 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 import React, { Component, PropTypes } from 'react';
 import { FormattedMessage } from 'react-intl';
 import { connect } from 'react-redux';
 import { observer } from 'mobx-react';
 import { observable } from 'mobx';
@ -206,7 +207,7 @@ class Verification extends Component {
    const {
      step,
-      isServerRunning, fee, isVerified, hasRequested,
+      isServerRunning, isAbleToRequest, fee, accountIsVerified, accountHasRequested,
      requestTx, isCodeValid, confirmationTx,
      setCode
    } = this.store;
@ -223,17 +224,37 @@ class Verification extends Component {
        if (method === 'sms') {
          fields.push({
            key: 'number',
-            label: 'phone number in international format',
+            label: (
-            hint: 'the SMS will be sent to this number',
+              <FormattedMessage
                id='ui.verification.gatherData.phoneNumber.label'
                defaultMessage='phone number in international format'
              />
            ),
            hint: (
              <FormattedMessage
                id='ui.verification.gatherData.phoneNumber.hint'
                defaultMessage='the SMS will be sent to this number'
              />
            ),
            error: this.store.isNumberValid ? null : 'invalid number',
            onChange: this.store.setNumber
          });
        } else if (method === 'email') {
          fields.push({
            key: 'email',
-            label: 'email address',
+            label: (
-            hint: 'the code will be sent to this address',
+              <FormattedMessage
-            error: this.store.isEmailValid ? null : 'invalid email',
+                id='ui.verification.gatherData.email.label'
                defaultMessage='e-mail address'
              />
            ),
            hint: (
              <FormattedMessage
                id='ui.verification.gatherData.email.hint'
                defaultMessage='the code will be sent to this address'
              />
            ),
            error: this.store.isEmailValid ? null : 'invalid e-mail',
            onChange: this.store.setEmail
          });
        }
@ -241,10 +262,12 @@ class Verification extends Component {
        return (
          <GatherData
            fee={ fee }
-            hasRequested={ hasRequested }
+            accountHasRequested={ accountHasRequested }
            isServerRunning={ isServerRunning }
-            isVerified={ isVerified }
+            isAbleToRequest={ isAbleToRequest }
-            method={ method } fields={ fields }
+            accountIsVerified={ accountIsVerified }
            method={ method }
            fields={ fields }
            setConsentGiven={ setConsentGiven }
          />
        );
--- a/js/src/modals/index.js
+++ b/js/src/modals/index.js
@ -16,10 +16,10 @@
 import AddAddress from './AddAddress';
 import AddContract from './AddContract';
 import AddDapps from './AddDapps';
 import CreateAccount from './CreateAccount';
 import CreateWallet from './CreateWallet';
 import DappPermissions from './DappPermissions';
 import DappsVisible from './AddDapps';
 import DeleteAccount from './DeleteAccount';
 import DeployContract from './DeployContract';
 import EditMeta from './EditMeta';
@ -37,10 +37,10 @@ import WalletSettings from './WalletSettings';
 export {
  AddAddress,
  AddContract,
  AddDapps,
  CreateAccount,
  CreateWallet,
  DappPermissions,
  DappsVisible,
  DeleteAccount,
  DeployContract,
  EditMeta,
--- a/js/src/ui/Container/container.js
+++ b/js/src/ui/Container/container.js
@ -29,15 +29,14 @@ export default class Container extends Component {
    className: PropTypes.string,
    compact: PropTypes.bool,
    light: PropTypes.bool,
    onClick: PropTypes.func,
    style: PropTypes.object,
    tabIndex: PropTypes.number,
    title: nodeOrStringProptype()
  }
  render () {
-    const { children, className, compact, light, style, tabIndex } = this.props;
+    const { children, className, compact, light, onClick, style, tabIndex } = this.props;
    const classes = `${styles.container} ${light ? styles.light : ''} ${className}`;
    const props = {};
    if (Number.isInteger(tabIndex)) {
@ -45,8 +44,27 @@ export default class Container extends Component {
    }
    return (
-      <div className={ classes } style={ style } { ...props }>
+      <div
-        <Card className={ compact ? styles.compact : styles.padded }>
+        className={
          [
            styles.container,
            light
              ? styles.light
              : '',
            className
          ].join(' ')
        }
        style={ style }
        { ...props }
      >
        <Card
          className={
            compact
              ? styles.compact
              : styles.padded
          }
          onClick={ onClick }
        >
          { this.renderTitle() }
          { children }
        </Card>
--- a/js/src/views/Dapps/Summary/summary.css
+++ b/js/src/views/Dapps/Summary/summary.css
--- a/js/src/views/Dapps/Summary/summary.js
+++ b/js/src/views/Dapps/Summary/summary.js
@ -17,59 +17,80 @@
 import React, { Component, PropTypes } from 'react';
 import { Link } from 'react-router';
-import { Container, ContainerTitle, DappIcon, Tags } from '~/ui';
+import Container, { Title as ContainerTitle } from '~/ui/Container';
 import DappIcon from '~/ui/DappIcon';
 import Tags from '~/ui/Tags';
-import styles from './summary.css';
+import styles from './dappCard.css';
-export default class Summary extends Component {
+export default class DappCard extends Component {
  static propTypes = {
    app: PropTypes.object.isRequired,
-    children: PropTypes.node
+    children: PropTypes.node,
-  }
+    className: PropTypes.string,
    onClick: PropTypes.func,
    showLink: PropTypes.bool,
    showTags: PropTypes.bool
  };
  static defaultProps = {
    showLink: false,
    showTags: false
  };
  render () {
-    const { app } = this.props;
+    const { app, children, className, onClick, showLink, showTags } = this.props;
    if (!app) {
      return null;
    }
    const link = this.renderLink(app);
    return (
-      <Container className={ styles.container }>
+      <Container
        className={
          [styles.container, className].join(' ')
        }
        onClick={ onClick }
      >
        <DappIcon
          app={ app }
          className={ styles.image }
        />
-        <Tags tags={ [app.type] } />
+        <Tags
          tags={
            showTags
              ? [app.type]
              : null
          }
        />
        <div className={ styles.description }>
          <ContainerTitle
            className={ styles.title }
-            title={ link }
+            title={
              showLink
                ? this.renderLink(app)
                : app.name
            }
            byline={ app.description }
          />
          <div className={ styles.author }>
            { app.author }, v{ app.version }
          </div>
-          { this.props.children }
+          { children }
        </div>
      </Container>
    );
  }
  renderLink (app) {
    // Special case for web dapp
    if (app.url === 'web') {
    return (
-        <Link to={ `/web` }>
+      <Link
-          { app.name }
+        to={
-        </Link>
+          app.url === 'web'
-      );
+            ? '/web'
            : `/app/${app.id}`
        }
-
+      >
    return (
      <Link to={ `/app/${app.id}` }>
        { app.name }
      </Link>
    );
--- a/js/src/views/Dapps/Summary/index.js
+++ b/js/src/views/Dapps/Summary/index.js
@ -14,4 +14,4 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
-export default from './summary';
+export default from './dappCard';
--- a/js/src/ui/index.js
+++ b/js/src/ui/index.js
@ -30,6 +30,7 @@ import Container, { Title as ContainerTitle } from './Container';
 import ContextProvider from './ContextProvider';
 import CopyToClipboard from './CopyToClipboard';
 import CurrencySymbol from './CurrencySymbol';
 import DappCard from './DappCard';
 import DappIcon from './DappIcon';
 import Editor from './Editor';
 import Errors from './Errors';
@ -79,6 +80,7 @@ export {
  CopyToClipboard,
  CurrencySymbol,
  DappIcon,
  DappCard,
  Editor,
  Errors,
  FEATURES,
--- a/js/src/views/Dapps/dapps.js
+++ b/js/src/views/Dapps/dapps.js
@ -21,14 +21,13 @@ import React, { Component, PropTypes } from 'react';
 import { FormattedMessage } from 'react-intl';
 import { connect } from 'react-redux';
-import { AddDapps, DappPermissions } from '~/modals';
+import { DappPermissions, DappsVisible } from '~/modals';
 import PermissionStore from '~/modals/DappPermissions/store';
-import { Actionbar, Button, Page } from '~/ui';
+import { Actionbar, Button, DappCard, Page } from '~/ui';
 import { LockedIcon, VisibleIcon } from '~/ui/Icons';
 import UrlButton from './UrlButton';
 import DappsStore from './dappsStore';
 import Summary from './Summary';
 import styles from './dapps.css';
@ -82,8 +81,8 @@ class Dapps extends Component {
    return (
      <div>
        <AddDapps store={ this.store } />
        <DappPermissions store={ this.permissionStore } />
        <DappsVisible store={ this.store } />
        <Actionbar
          className={ styles.toolbar }
          title={
@ -146,7 +145,11 @@ class Dapps extends Component {
        className={ styles.item }
        key={ app.id }
      >
-        <Summary app={ app } />
+        <DappCard
          app={ app }
          showLink
          showTags
        />
      </div>
    );
  }
--- a/rpc/src/v1/helpers/dispatch.rs
+++ b/rpc/src/v1/helpers/dispatch.rs
@ -192,7 +192,7 @@ pub fn sign_and_dispatch<C, M>(client: &C, miner: &M, accounts: &AccountProvider
 {
 	let network_id = client.signing_network_id();
-	let min_block = filled.min_block.clone();
+	let condition = filled.condition.clone();
 	let signed_transaction = sign_no_dispatch(client, miner, accounts, filled, password)?;
 	let (signed_transaction, token) = match signed_transaction {
@ -201,7 +201,7 @@ pub fn sign_and_dispatch<C, M>(client: &C, miner: &M, accounts: &AccountProvider
 	};
 	trace!(target: "miner", "send_transaction: dispatching tx: {} for network ID {:?}", rlp::encode(&signed_transaction).to_vec().pretty(), network_id);
-	let pending_transaction = PendingTransaction::new(signed_transaction, min_block);
+	let pending_transaction = PendingTransaction::new(signed_transaction, condition.map(Into::into));
 	dispatch_transaction(&*client, &*miner, pending_transaction).map(|hash| {
 		match token {
 			Some(ref token) => WithToken::Yes(hash, token.clone()),
@ -222,7 +222,7 @@ pub fn fill_optional_fields<C, M>(request: TransactionRequest, default_sender: A
 		gas: request.gas.unwrap_or_else(|| miner.sensible_gas_limit()),
 		value: request.value.unwrap_or_else(|| 0.into()),
 		data: request.data.unwrap_or_else(Vec::new),
-		min_block: request.min_block,
+		condition: request.condition,
 	}
 }
--- a/rpc/src/v1/helpers/requests.rs
+++ b/rpc/src/v1/helpers/requests.rs
@ -15,6 +15,7 @@
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 use util::{Address, U256, Bytes};
 use v1::types::TransactionCondition;
 /// Transaction request coming from RPC
 #[derive(Debug, Clone, Default, Eq, PartialEq, Hash)]
@ -33,8 +34,8 @@ pub struct TransactionRequest {
 	pub data: Option<Bytes>,
 	/// Transaction's nonce
 	pub nonce: Option<U256>,
-	/// Delay until this block if specified.
+	/// Delay until this condition is met.
-	pub min_block: Option<u64>,
+	pub condition: Option<TransactionCondition>,
 }
 /// Transaction request coming from RPC with default values filled in.
@ -56,8 +57,8 @@ pub struct FilledTransactionRequest {
 	pub data: Bytes,
 	/// Transaction's nonce
 	pub nonce: Option<U256>,
-	/// Delay until this block if specified.
+	/// Delay until this condition is met.
-	pub min_block: Option<u64>,
+	pub condition: Option<TransactionCondition>,
 }
 impl From<FilledTransactionRequest> for TransactionRequest {
@ -70,7 +71,7 @@ impl From<FilledTransactionRequest> for TransactionRequest {
 			value: Some(r.value),
 			data: Some(r.data),
 			nonce: r.nonce,
-			min_block: r.min_block,
+			condition: r.condition,
 		}
 	}
 }
--- a/rpc/src/v1/helpers/signing_queue.rs
+++ b/rpc/src/v1/helpers/signing_queue.rs
@ -349,7 +349,7 @@ mod test {
 			value: 10_000_000.into(),
 			data: vec![],
 			nonce: None,
-			min_block: None,
+			condition: None,
 		})
 	}
--- a/rpc/src/v1/impls/parity.rs
+++ b/rpc/src/v1/impls/parity.rs
@ -130,7 +130,7 @@ impl<C, M, S: ?Sized, U> Parity for ParityClient<C, M, S, U> where
 			.into_iter().collect::<HashSet<_>>();
 		let info = store.accounts_info().map_err(|e| errors::account("Could not fetch account info.", e))?;
-		let other = store.addresses_info().expect("addresses_info always returns Ok; qed");
+		let other = store.addresses_info();
 		Ok(info
 			.into_iter()
--- a/rpc/src/v1/impls/parity_accounts.rs
+++ b/rpc/src/v1/impls/parity_accounts.rs
@ -51,13 +51,16 @@ impl<C> ParityAccountsClient<C> where C: MiningBlockChainClient {
 }
 impl<C: 'static> ParityAccounts for ParityAccountsClient<C> where C: MiningBlockChainClient {
-	fn all_accounts_info(&self) -> Result<BTreeMap<String, BTreeMap<String, String>>, Error> {
+	fn all_accounts_info(&self) -> Result<BTreeMap<RpcH160, BTreeMap<String, String>>, Error> {
 		self.active()?;
 		let store = take_weak!(self.accounts);
 		let info = store.accounts_info().map_err(|e| errors::account("Could not fetch account info.", e))?;
-		let other = store.addresses_info().expect("addresses_info always returns Ok; qed");
+		let other = store.addresses_info();
-		Ok(info.into_iter().chain(other.into_iter()).map(|(a, v)| {
+		Ok(info
 		   .into_iter()
 		   .chain(other.into_iter())
 		   .map(|(address, v)| {
 			   let mut m = map![
 				   "name".to_owned() => v.name,
 				   "meta".to_owned() => v.meta
@ -65,8 +68,10 @@ impl<C: 'static> ParityAccounts for ParityAccountsClient<C> where C: MiningBlock
 			   if let &Some(ref uuid) = &v.uuid {
 				   m.insert("uuid".to_owned(), format!("{}", uuid));
 			   }
-			(format!("0x{}", a.hex()), m)
+			   (address.into(), m)
-		}).collect())
+		   })
 		   .collect()
 		)
 	}
 	fn new_account_from_phrase(&self, phrase: String, pass: String) -> Result<RpcH160, Error> {
@ -132,8 +137,7 @@ impl<C: 'static> ParityAccounts for ParityAccountsClient<C> where C: MiningBlock
 		let store = take_weak!(self.accounts);
 		let addr: Address = addr.into();
-		store.remove_address(addr)
+		store.remove_address(addr);
 			.expect("remove_address always returns Ok; qed");
 		Ok(true)
 	}
@ -143,8 +147,7 @@ impl<C: 'static> ParityAccounts for ParityAccountsClient<C> where C: MiningBlock
 		let addr: Address = addr.into();
 		store.set_account_name(addr.clone(), name.clone())
-			.or_else(|_| store.set_address_name(addr, name))
+			.unwrap_or_else(|_| store.set_address_name(addr, name));
 			.expect("set_address_name always returns Ok; qed");
 		Ok(true)
 	}
@ -154,8 +157,7 @@ impl<C: 'static> ParityAccounts for ParityAccountsClient<C> where C: MiningBlock
 		let addr: Address = addr.into();
 		store.set_account_meta(addr.clone(), meta.clone())
-			.or_else(|_| store.set_address_meta(addr, meta))
+			.unwrap_or_else(|_| store.set_address_meta(addr, meta));
 			.expect("set_address_meta always returns Ok; qed");
 		Ok(true)
 	}
--- a/rpc/src/v1/impls/signer.rs
+++ b/rpc/src/v1/impls/signer.rs
@ -87,8 +87,8 @@ impl<C: 'static, M: 'static> SignerClient<C, M> where C: MiningBlockChainClient,
 				if let Some(gas) = modification.gas {
 					request.gas = gas.into();
 				}
-				if let Some(ref min_block) = modification.min_block {
+				if let Some(ref condition) = modification.condition {
-					request.min_block = min_block.as_ref().and_then(|b| b.to_min_block_num());
+					request.condition = condition.clone().map(Into::into);
 				}
 			}
 			let result = f(&*client, &*miner, &*accounts, payload);
@ -160,7 +160,7 @@ impl<C: 'static, M: 'static> Signer for SignerClient<C, M> where C: MiningBlockC
 					// Dispatch if everything is ok
 					if sender_matches && data_matches && value_matches && nonce_matches {
-						let pending_transaction = PendingTransaction::new(signed_transaction, request.min_block);
+						let pending_transaction = PendingTransaction::new(signed_transaction, request.condition.map(Into::into));
 						dispatch_transaction(&*client, &*miner, pending_transaction)
 							.map(Into::into)
 							.map(ConfirmationResponse::SendTransaction)
--- a/rpc/src/v1/tests/helpers/miner_service.rs
+++ b/rpc/src/v1/tests/helpers/miner_service.rs
@ -212,7 +212,7 @@ impl MinerService for TestMinerService {
 		self.local_transactions.lock().iter().map(|(hash, stats)| (*hash, stats.clone())).collect()
 	}
-	fn ready_transactions(&self, _best_block: BlockNumber) -> Vec<PendingTransaction> {
+	fn ready_transactions(&self, _best_block: BlockNumber, _best_timestamp: u64) -> Vec<PendingTransaction> {
 		self.pending_transactions.lock().values().cloned().map(Into::into).collect()
 	}
--- a/rpc/src/v1/tests/mocked/eth.rs
+++ b/rpc/src/v1/tests/mocked/eth.rs
@ -365,6 +365,8 @@ fn rpc_eth_accounts() {
 	let tester = EthTester::default();
 	let address = tester.accounts_provider.new_account("").unwrap();
 	tester.accounts_provider.set_new_dapps_whitelist(None).unwrap();
 	tester.accounts_provider.set_address_name(1.into(), "1".into());
 	tester.accounts_provider.set_address_name(10.into(), "10".into());
 	// with current policy it should return the account
 	let request = r#"{"jsonrpc": "2.0", "method": "eth_accounts", "params": [], "id": 1}"#;
@ -514,7 +516,7 @@ fn rpc_eth_pending_transaction_by_hash() {
 		tester.miner.pending_transactions.lock().insert(H256::zero(), tx);
 	}
-	let response = r#"{"jsonrpc":"2.0","result":{"blockHash":null,"blockNumber":null,"creates":null,"from":"0x0f65fe9276bc9a24ae7083ae28e2660ef72df99e","gas":"0x5208","gasPrice":"0x1","hash":"0x41df922fd0d4766fcc02e161f8295ec28522f329ae487f14d811e4b64c8d6e31","input":"0x","minBlock":null,"networkId":null,"nonce":"0x0","publicKey":"0x7ae46da747962c2ee46825839c1ef9298e3bd2e70ca2938495c3693a485ec3eaa8f196327881090ff64cf4fbb0a48485d4f83098e189ed3b7a87d5941b59f789","r":"0x48b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353","raw":"0xf85f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870a801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a0efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804","s":"0xefffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804","standardV":"0x0","to":"0x095e7baea6a6c7c4c2dfeb977efac326af552d87","transactionIndex":null,"v":"0x1b","value":"0xa"},"id":1}"#;
+	let response = r#"{"jsonrpc":"2.0","result":{"blockHash":null,"blockNumber":null,"condition":null,"creates":null,"from":"0x0f65fe9276bc9a24ae7083ae28e2660ef72df99e","gas":"0x5208","gasPrice":"0x1","hash":"0x41df922fd0d4766fcc02e161f8295ec28522f329ae487f14d811e4b64c8d6e31","input":"0x","networkId":null,"nonce":"0x0","publicKey":"0x7ae46da747962c2ee46825839c1ef9298e3bd2e70ca2938495c3693a485ec3eaa8f196327881090ff64cf4fbb0a48485d4f83098e189ed3b7a87d5941b59f789","r":"0x48b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353","raw":"0xf85f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870a801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a0efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804","s":"0xefffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804","standardV":"0x0","to":"0x095e7baea6a6c7c4c2dfeb977efac326af552d87","transactionIndex":null,"v":"0x1b","value":"0xa"},"id":1}"#;
 	let request = r#"{
 		"jsonrpc": "2.0",
 		"method": "eth_getTransactionByHash",
@ -830,12 +832,11 @@ fn rpc_eth_sign_transaction() {
 	let response = r#"{"jsonrpc":"2.0","result":{"#.to_owned() +
 		r#""raw":"0x"# + &rlp.to_hex() + r#"","# +
 		r#""tx":{"# +
-		r#""blockHash":null,"blockNumber":null,"creates":null,"# +
+		r#""blockHash":null,"blockNumber":null,"condition":null,"creates":null,"# +
 		&format!("\"from\":\"0x{:?}\",", &address) +
 		r#""gas":"0x76c0","gasPrice":"0x9184e72a000","# +
 		&format!("\"hash\":\"0x{:?}\",", t.hash()) +
 		r#""input":"0x","# +
 		r#""minBlock":null,"# +
 		&format!("\"networkId\":{},", t.network_id().map_or("null".to_owned(), |n| format!("{}", n))) +
 		r#""nonce":"0x1","# +
 		&format!("\"publicKey\":\"0x{:?}\",", t.recover_public().unwrap()) +
--- a/rpc/src/v1/tests/mocked/parity_accounts.rs
+++ b/rpc/src/v1/tests/mocked/parity_accounts.rs
@ -120,10 +120,11 @@ fn should_be_able_to_set_meta() {
 fn rpc_parity_set_and_get_dapps_accounts() {
 	// given
 	let tester = setup();
 	tester.accounts.set_address_name(10.into(), "10".into());
 	assert_eq!(tester.accounts.dapps_addresses("app1".into()).unwrap(), vec![]);
 	// when
-	let request = r#"{"jsonrpc": "2.0", "method": "parity_setDappsAddresses","params":["app1",["0x000000000000000000000000000000000000000a"]], "id": 1}"#;
+	let request = r#"{"jsonrpc": "2.0", "method": "parity_setDappsAddresses","params":["app1",["0x000000000000000000000000000000000000000a","0x0000000000000000000000000000000000000001"]], "id": 1}"#;
 	let response = r#"{"jsonrpc":"2.0","result":true,"id":1}"#;
 	assert_eq!(tester.io.handle_request_sync(request), Some(response.to_owned()));
--- a/rpc/src/v1/tests/mocked/signer.rs
+++ b/rpc/src/v1/tests/mocked/signer.rs
@ -85,7 +85,7 @@ fn should_return_list_of_items_to_confirm() {
 		value: U256::from(1),
 		data: vec![],
 		nonce: None,
-		min_block: None,
+		condition: None,
 	})).unwrap();
 	tester.signer.add_request(ConfirmationPayload::Signature(1.into(), vec![5].into())).unwrap();
@ -93,7 +93,7 @@ fn should_return_list_of_items_to_confirm() {
 	let request = r#"{"jsonrpc":"2.0","method":"signer_requestsToConfirm","params":[],"id":1}"#;
 	let response = concat!(
 		r#"{"jsonrpc":"2.0","result":["#,
-		r#"{"id":"0x1","payload":{"sendTransaction":{"data":"0x","from":"0x0000000000000000000000000000000000000001","gas":"0x989680","gasPrice":"0x2710","minBlock":null,"nonce":null,"to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","value":"0x1"}}},"#,
+		r#"{"id":"0x1","payload":{"sendTransaction":{"condition":null,"data":"0x","from":"0x0000000000000000000000000000000000000001","gas":"0x989680","gasPrice":"0x2710","nonce":null,"to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","value":"0x1"}}},"#,
 		r#"{"id":"0x2","payload":{"sign":{"address":"0x0000000000000000000000000000000000000001","data":"0x05"}}}"#,
 		r#"],"id":1}"#
 	);
@ -116,7 +116,7 @@ fn should_reject_transaction_from_queue_without_dispatching() {
 		value: U256::from(1),
 		data: vec![],
 		nonce: None,
-		min_block: None,
+		condition: None,
 	})).unwrap();
 	assert_eq!(tester.signer.requests().len(), 1);
@ -143,7 +143,7 @@ fn should_not_remove_transaction_if_password_is_invalid() {
 		value: U256::from(1),
 		data: vec![],
 		nonce: None,
-		min_block: None,
+		condition: None,
 	})).unwrap();
 	assert_eq!(tester.signer.requests().len(), 1);
@ -187,7 +187,7 @@ fn should_confirm_transaction_and_dispatch() {
 		value: U256::from(1),
 		data: vec![],
 		nonce: None,
-		min_block: None,
+		condition: None,
 	})).unwrap();
 	let t = Transaction {
@ -233,7 +233,7 @@ fn should_alter_the_sender_and_nonce() {
 		value: U256::from(1),
 		data: vec![],
 		nonce: Some(10.into()),
-		min_block: None,
+		condition: None,
 	})).unwrap();
 	let t = Transaction {
@ -283,7 +283,7 @@ fn should_confirm_transaction_with_token() {
 		value: U256::from(1),
 		data: vec![],
 		nonce: None,
-		min_block: None,
+		condition: None,
 	})).unwrap();
 	let t = Transaction {
@ -332,7 +332,7 @@ fn should_confirm_transaction_with_rlp() {
 		value: U256::from(1),
 		data: vec![],
 		nonce: None,
-		min_block: None,
+		condition: None,
 	})).unwrap();
 	let t = Transaction {
@ -380,7 +380,7 @@ fn should_return_error_when_sender_does_not_match() {
 		value: U256::from(1),
 		data: vec![],
 		nonce: None,
-		min_block: None,
+		condition: None,
 	})).unwrap();
 	let t = Transaction {
--- a/rpc/src/v1/tests/mocked/signing.rs
+++ b/rpc/src/v1/tests/mocked/signing.rs
@ -277,12 +277,11 @@ fn should_add_sign_transaction_to_the_queue() {
 	let response = r#"{"jsonrpc":"2.0","result":{"#.to_owned() +
 		r#""raw":"0x"# + &rlp.to_hex() + r#"","# +
 		r#""tx":{"# +
-		r#""blockHash":null,"blockNumber":null,"creates":null,"# +
+		r#""blockHash":null,"blockNumber":null,"condition":null,"creates":null,"# +
 		&format!("\"from\":\"0x{:?}\",", &address) +
 		r#""gas":"0x76c0","gasPrice":"0x9184e72a000","# +
 		&format!("\"hash\":\"0x{:?}\",", t.hash()) +
 		r#""input":"0x","# +
 		r#""minBlock":null,"# +
 		&format!("\"networkId\":{},", t.network_id().map_or("null".to_owned(), |n| format!("{}", n))) +
 		r#""nonce":"0x1","# +
 		&format!("\"publicKey\":\"0x{:?}\",", t.public_key()) +
--- a/rpc/src/v1/traits/parity_accounts.rs
+++ b/rpc/src/v1/traits/parity_accounts.rs
@ -25,7 +25,7 @@ build_rpc_trait! {
 	pub trait ParityAccounts {
 		/// Returns accounts information.
 		#[rpc(name = "parity_allAccountsInfo")]
-		fn all_accounts_info(&self) -> Result<BTreeMap<String, BTreeMap<String, String>>, Error>;
+		fn all_accounts_info(&self) -> Result<BTreeMap<H160, BTreeMap<String, String>>, Error>;
 		/// Creates new account from the given phrase using standard brainwallet mechanism.
 		/// Second parameter is password for the new account.
--- a/rpc/src/v1/types/block.rs
+++ b/rpc/src/v1/types/block.rs
@ -139,7 +139,7 @@ mod tests {
 	fn test_serialize_block_transactions() {
 		let t = BlockTransactions::Full(vec![Transaction::default()]);
 		let serialized = serde_json::to_string(&t).unwrap();
-		assert_eq!(serialized, r#"[{"hash":"0x0000000000000000000000000000000000000000000000000000000000000000","nonce":"0x0","blockHash":null,"blockNumber":null,"transactionIndex":null,"from":"0x0000000000000000000000000000000000000000","to":null,"value":"0x0","gasPrice":"0x0","gas":"0x0","input":"0x","creates":null,"raw":"0x","publicKey":null,"networkId":null,"standardV":"0x0","v":"0x0","r":"0x0","s":"0x0","minBlock":null}]"#);
+		assert_eq!(serialized, r#"[{"hash":"0x0000000000000000000000000000000000000000000000000000000000000000","nonce":"0x0","blockHash":null,"blockNumber":null,"transactionIndex":null,"from":"0x0000000000000000000000000000000000000000","to":null,"value":"0x0","gasPrice":"0x0","gas":"0x0","input":"0x","creates":null,"raw":"0x","publicKey":null,"networkId":null,"standardV":"0x0","v":"0x0","r":"0x0","s":"0x0","condition":null}]"#);
 		let t = BlockTransactions::Hashes(vec![H256::default().into()]);
 		let serialized = serde_json::to_string(&t).unwrap();
--- a/rpc/src/v1/types/confirmations.rs
+++ b/rpc/src/v1/types/confirmations.rs
@ -21,7 +21,7 @@ use serde::{Serialize, Serializer};
 use util::log::Colour;
 use util::bytes::ToPretty;
-use v1::types::{U256, TransactionRequest, RichRawTransaction, H160, H256, H520, Bytes, BlockNumber};
+use v1::types::{U256, TransactionRequest, RichRawTransaction, H160, H256, H520, Bytes, TransactionCondition};
 use v1::helpers;
 /// Confirmation waiting in a queue
@ -196,9 +196,8 @@ pub struct TransactionModification {
 	pub gas_price: Option<U256>,
 	/// Modified gas
 	pub gas: Option<U256>,
-	/// Modified min block
+	/// Modified transaction condition.
-	#[serde(rename="minBlock")]
+	pub condition: Option<Option<TransactionCondition>>,
 	pub min_block: Option<Option<BlockNumber>>,
 }
 /// Represents two possible return values.
@ -240,7 +239,7 @@ impl<A, B> Serialize for Either<A, B>  where
 mod tests {
 	use std::str::FromStr;
 	use serde_json;
-	use v1::types::{U256, H256, BlockNumber};
+	use v1::types::{U256, H256, TransactionCondition};
 	use v1::helpers;
 	use super::*;
@ -274,13 +273,13 @@ mod tests {
 				value: 100_000.into(),
 				data: vec![1, 2, 3],
 				nonce: Some(1.into()),
-				min_block: None,
+				condition: None,
 			}),
 		};
 		// when
 		let res = serde_json::to_string(&ConfirmationRequest::from(request));
-		let expected = r#"{"id":"0xf","payload":{"sendTransaction":{"from":"0x0000000000000000000000000000000000000000","to":null,"gasPrice":"0x2710","gas":"0x3a98","value":"0x186a0","data":"0x010203","nonce":"0x1","minBlock":null}}}"#;
+		let expected = r#"{"id":"0xf","payload":{"sendTransaction":{"from":"0x0000000000000000000000000000000000000000","to":null,"gasPrice":"0x2710","gas":"0x3a98","value":"0x186a0","data":"0x010203","nonce":"0x1","condition":null}}}"#;
 		// then
 		assert_eq!(res.unwrap(), expected.to_owned());
@ -300,13 +299,13 @@ mod tests {
 				value: 100_000.into(),
 				data: vec![1, 2, 3],
 				nonce: Some(1.into()),
-				min_block: None,
+				condition: None,
 			}),
 		};
 		// when
 		let res = serde_json::to_string(&ConfirmationRequest::from(request));
-		let expected = r#"{"id":"0xf","payload":{"signTransaction":{"from":"0x0000000000000000000000000000000000000000","to":null,"gasPrice":"0x2710","gas":"0x3a98","value":"0x186a0","data":"0x010203","nonce":"0x1","minBlock":null}}}"#;
+		let expected = r#"{"id":"0xf","payload":{"signTransaction":{"from":"0x0000000000000000000000000000000000000000","to":null,"gasPrice":"0x2710","gas":"0x3a98","value":"0x186a0","data":"0x010203","nonce":"0x1","condition":null}}}"#;
 		// then
 		assert_eq!(res.unwrap(), expected.to_owned());
@ -336,7 +335,7 @@ mod tests {
 		let s1 = r#"{
 			"sender": "0x000000000000000000000000000000000000000a",
 			"gasPrice":"0xba43b7400",
-			"minBlock":"0x42"
+			"condition": { "block": 66 }
 		}"#;
 		let s2 = r#"{"gas": "0x1233"}"#;
 		let s3 = r#"{}"#;
@ -351,19 +350,19 @@ mod tests {
 			sender: Some(10.into()),
 			gas_price: Some(U256::from_str("0ba43b7400").unwrap()),
 			gas: None,
-			min_block: Some(Some(BlockNumber::Num(0x42))),
+			condition: Some(Some(TransactionCondition::Number(0x42))),
 		});
 		assert_eq!(res2, TransactionModification {
 			sender: None,
 			gas_price: None,
 			gas: Some(U256::from_str("1233").unwrap()),
-			min_block: None,
+			condition: None,
 		});
 		assert_eq!(res3, TransactionModification {
 			sender: None,
 			gas_price: None,
 			gas: None,
-			min_block: None,
+			condition: None,
 		});
 	}
--- a/rpc/src/v1/types/mod.rs.in
+++ b/rpc/src/v1/types/mod.rs.in
@ -27,6 +27,7 @@ mod log;
 mod sync;
 mod transaction;
 mod transaction_request;
 mod transaction_condition;
 mod receipt;
 mod rpc_settings;
 mod trace;
@ -55,6 +56,7 @@ pub use self::sync::{
 };
 pub use self::transaction::{Transaction, RichRawTransaction, LocalTransactionStatus};
 pub use self::transaction_request::TransactionRequest;
 pub use self::transaction_condition::TransactionCondition;
 pub use self::receipt::Receipt;
 pub use self::rpc_settings::RpcSettings;
 pub use self::trace::{LocalizedTrace, TraceResults};
--- a/rpc/src/v1/types/transaction.rs
+++ b/rpc/src/v1/types/transaction.rs
@ -19,7 +19,7 @@ use ethcore::miner;
 use ethcore::contract_address;
 use ethcore::transaction::{LocalizedTransaction, Action, PendingTransaction, SignedTransaction};
 use v1::helpers::errors;
-use v1::types::{Bytes, H160, H256, U256, H512, BlockNumber};
+use v1::types::{Bytes, H160, H256, U256, H512, TransactionCondition};
 /// Transaction
 #[derive(Debug, Default, Clone, PartialEq, Serialize)]
@ -70,8 +70,7 @@ pub struct Transaction {
 	/// The S field of the signature.
 	pub s: U256,
 	/// Transaction activates at specified block.
-	#[serde(rename="minBlock")]
+	pub condition: Option<TransactionCondition>,
 	pub min_block: Option<BlockNumber>,
 }
 /// Local Transaction Status
@ -190,7 +189,7 @@ impl From<LocalizedTransaction> for Transaction {
 			v: t.original_v().into(),
 			r: signature.r().into(),
 			s: signature.s().into(),
-			min_block: None,
+			condition: None,
 		}
 	}
 }
@ -224,7 +223,7 @@ impl From<SignedTransaction> for Transaction {
 			v: t.original_v().into(),
 			r: signature.r().into(),
 			s: signature.s().into(),
-			min_block: None,
+			condition: None,
 		}
 	}
 }
@ -232,7 +231,7 @@ impl From<SignedTransaction> for Transaction {
 impl From<PendingTransaction> for Transaction {
 	fn from(t: PendingTransaction) -> Transaction {
 		let mut r = Transaction::from(t.transaction);
-		r.min_block = t.min_block.map(|b| BlockNumber::Num(b));
+		r.condition = t.condition.map(|b| b.into());
 		r
 	}
 }
@ -261,7 +260,7 @@ mod tests {
 	fn test_transaction_serialize() {
 		let t = Transaction::default();
 		let serialized = serde_json::to_string(&t).unwrap();
-		assert_eq!(serialized, r#"{"hash":"0x0000000000000000000000000000000000000000000000000000000000000000","nonce":"0x0","blockHash":null,"blockNumber":null,"transactionIndex":null,"from":"0x0000000000000000000000000000000000000000","to":null,"value":"0x0","gasPrice":"0x0","gas":"0x0","input":"0x","creates":null,"raw":"0x","publicKey":null,"networkId":null,"standardV":"0x0","v":"0x0","r":"0x0","s":"0x0","minBlock":null}"#);
+		assert_eq!(serialized, r#"{"hash":"0x0000000000000000000000000000000000000000000000000000000000000000","nonce":"0x0","blockHash":null,"blockNumber":null,"transactionIndex":null,"from":"0x0000000000000000000000000000000000000000","to":null,"value":"0x0","gasPrice":"0x0","gas":"0x0","input":"0x","creates":null,"raw":"0x","publicKey":null,"networkId":null,"standardV":"0x0","v":"0x0","r":"0x0","s":"0x0","condition":null}"#);
 	}
 	#[test]
--- a/rpc/src/v1/types/transaction_condition.rs
+++ b/rpc/src/v1/types/transaction_condition.rs
@ -0,0 +1,67 @@
 // Copyright 2015-2017 Parity Technologies (UK) Ltd.
 // This file is part of Parity.
 // Parity is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
 // the Free Software Foundation, either version 3 of the License, or
 // (at your option) any later version.
 // Parity is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 // GNU General Public License for more details.
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 use ethcore;
 /// Represents condition on minimum block number or block timestamp.
 #[derive(Debug, Clone, Eq, PartialEq, Hash, Serialize, Deserialize)]
 pub enum TransactionCondition {
 	/// Valid at this minimum block number.
 	#[serde(rename="block")]
 	Number(u64),
 	/// Valid at given unix time.
 	#[serde(rename="time")]
 	Timestamp(u64),
 }
 impl Into<ethcore::transaction::Condition> for TransactionCondition {
 	fn into(self) -> ethcore::transaction::Condition {
 		match self {
 			TransactionCondition::Number(n) => ethcore::transaction::Condition::Number(n),
 			TransactionCondition::Timestamp(n) => ethcore::transaction::Condition::Timestamp(n),
 		}
 	}
 }
 impl From<ethcore::transaction::Condition> for TransactionCondition {
 	fn from(condition: ethcore::transaction::Condition) -> Self {
 		match condition {
 			ethcore::transaction::Condition::Number(n) => TransactionCondition::Number(n),
 			ethcore::transaction::Condition::Timestamp(n) => TransactionCondition::Timestamp(n),
 		}
 	}
 }
 #[cfg(test)]
 mod tests {
 	use ethcore;
 	use super::*;
 	use serde_json;
 	#[test]
 	fn condition_deserialization() {
 		let s = r#"[{ "block": 51 }, { "time": 10 }]"#;
 		let deserialized: Vec<TransactionCondition> = serde_json::from_str(s).unwrap();
 		assert_eq!(deserialized, vec![TransactionCondition::Number(51), TransactionCondition::Timestamp(10)])
 	}
 	#[test]
 	fn condition_into() {
 		assert_eq!(ethcore::transaction::Condition::Number(100), TransactionCondition::Number(100).into());
 		assert_eq!(ethcore::transaction::Condition::Timestamp(100), TransactionCondition::Timestamp(100).into());
 	}
 }
--- a/rpc/src/v1/types/transaction_request.rs
+++ b/rpc/src/v1/types/transaction_request.rs
@ -16,7 +16,7 @@
 //! `TransactionRequest` type
-use v1::types::{Bytes, H160, U256, BlockNumber};
+use v1::types::{Bytes, H160, U256, TransactionCondition};
 use v1::helpers;
 use util::log::Colour;
@ -41,9 +41,8 @@ pub struct TransactionRequest {
 	pub data: Option<Bytes>,
 	/// Transaction's nonce
 	pub nonce: Option<U256>,
-	/// Delay until this block if specified.
+	/// Delay until this block condition.
-	#[serde(rename="minBlock")]
+	pub condition: Option<TransactionCondition>,
 	pub min_block: Option<BlockNumber>,
 }
 pub fn format_ether(i: U256) -> String {
@ -93,7 +92,7 @@ impl From<helpers::TransactionRequest> for TransactionRequest {
 			value: r.value.map(Into::into),
 			data: r.data.map(Into::into),
 			nonce: r.nonce.map(Into::into),
-			min_block: r.min_block.map(|b| BlockNumber::Num(b)),
+			condition: r.condition.map(Into::into),
 		}
 	}
 }
@ -108,7 +107,7 @@ impl From<helpers::FilledTransactionRequest> for TransactionRequest {
 			value: Some(r.value.into()),
 			data: Some(r.data.into()),
 			nonce: r.nonce.map(Into::into),
-			min_block: r.min_block.map(|b| BlockNumber::Num(b)),
+			condition: r.condition.map(Into::into),
 		}
 	}
 }
@ -123,7 +122,7 @@ impl Into<helpers::TransactionRequest> for TransactionRequest {
 			value: self.value.map(Into::into),
 			data: self.data.map(Into::into),
 			nonce: self.nonce.map(Into::into),
-			min_block: self.min_block.and_then(|b| b.to_min_block_num()),
+			condition: self.condition.map(Into::into),
 		}
 	}
 }
@ -134,7 +133,7 @@ mod tests {
 	use std::str::FromStr;
 	use rustc_serialize::hex::FromHex;
 	use serde_json;
-	use v1::types::{U256, H160, BlockNumber};
+	use v1::types::{U256, H160, TransactionCondition};
 	use super::*;
 	#[test]
@ -147,7 +146,7 @@ mod tests {
 			"value":"0x3",
 			"data":"0x123456",
 			"nonce":"0x4",
-			"minBlock":"0x13"
+			"condition": { "block": 19 }
 		}"#;
 		let deserialized: TransactionRequest = serde_json::from_str(s).unwrap();
@ -159,7 +158,7 @@ mod tests {
 			value: Some(U256::from(3)),
 			data: Some(vec![0x12, 0x34, 0x56].into()),
 			nonce: Some(U256::from(4)),
-			min_block: Some(BlockNumber::Num(0x13)),
+			condition: Some(TransactionCondition::Number(0x13)),
 		});
 	}
@ -183,7 +182,7 @@ mod tests {
 			value: Some(U256::from_str("9184e72a").unwrap()),
 			data: Some("d46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675".from_hex().unwrap().into()),
 			nonce: None,
-			min_block: None,
+			condition: None,
 		});
 	}
@ -200,7 +199,7 @@ mod tests {
 			value: None,
 			data: None,
 			nonce: None,
-			min_block: None,
+			condition: None,
 		});
 	}
@ -224,7 +223,7 @@ mod tests {
 			value: None,
 			data: Some(vec![0x85, 0x95, 0xba, 0xb1].into()),
 			nonce: None,
-			min_block: None,
+			condition: None,
 		});
 	}
--- a/rpc_client/src/signer_client.rs
+++ b/rpc_client/src/signer_client.rs
@ -1,5 +1,5 @@
 use client::{Rpc, RpcError};
-use rpc::v1::types::{ConfirmationRequest, TransactionModification, U256, BlockNumber};
+use rpc::v1::types::{ConfirmationRequest, TransactionModification, U256, TransactionCondition};
 use serde_json::{Value as JsonValue, to_value};
 use std::path::PathBuf;
 use futures::{BoxFuture, Canceled};
@ -22,13 +22,13 @@ impl SignerRpc {
 		id: U256,
 		new_gas: Option<U256>,
 		new_gas_price: Option<U256>,
-		new_min_block: Option<Option<BlockNumber>>,
+		new_condition: Option<Option<TransactionCondition>>,
 		pwd: &str
 	) -> BoxFuture<Result<U256, RpcError>, Canceled>
 	{
 		self.rpc.request("signer_confirmRequest", vec![
 			to_value(&format!("{:#x}", id)),
-			to_value(&TransactionModification { sender: None, gas_price: new_gas_price, gas: new_gas, min_block: new_min_block }),
+			to_value(&TransactionModification { sender: None, gas_price: new_gas_price, gas: new_gas, condition: new_condition }),
 			to_value(&pwd),
 		])
 	}
--- a/scripts/deb-build.sh
+++ b/scripts/deb-build.sh
@ -25,7 +25,7 @@ echo "Homepage: https://ethcore.io" >> $control
 echo "Vcs-Git: git://github.com/ethcore/parity.git" >> $control
 echo "Vcs-Browser: https://github.com/ethcore/parity" >> $control
 echo "Architecture: $1" >> $control
-echo "Depends: libssl1.0.0" >> $control
+echo "Depends: libssl1.0.0 (>=1.0.0)" >> $control
 echo "Description: Ethereum network client by Ethcore" >> $control
 #build .deb package
--- a/util/fetch/Cargo.toml
+++ b/util/fetch/Cargo.toml
@ -9,8 +9,9 @@ authors = ["Parity Technologies <admin@parity.io>"]
 [dependencies]
 futures = "0.1"
 futures-cpupool = "0.1"
 parking_lot = "0.3"
 log = "0.3"
-reqwest = "0.2"
+reqwest = "0.4"
 mime = "0.2"
 clippy = { version = "0.0.90", optional = true}
--- a/util/fetch/src/client.rs
+++ b/util/fetch/src/client.rs
@ -16,13 +16,14 @@
 //! Fetching
-use std::{io, fmt};
+use std::{io, fmt, time};
 use std::sync::Arc;
 use std::sync::atomic::{self, AtomicBool};
 use futures::{self, BoxFuture, Future};
 use futures_cpupool::{CpuPool, CpuFuture};
 use mime::{self, Mime};
 use parking_lot::RwLock;
 use reqwest;
 #[derive(Default, Debug, Clone)]
@ -73,24 +74,52 @@ pub trait Fetch: Clone + Send + Sync + 'static {
 	fn close(self) where Self: Sized {}
 }
-#[derive(Clone)]
+const CLIENT_TIMEOUT_SECONDS: u64 = 5;
 pub struct Client {
-	client: Arc<reqwest::Client>,
+	client: RwLock<(time::Instant, Arc<reqwest::Client>)>,
 	pool: CpuPool,
 	limit: Option<usize>,
 }
 impl Clone for Client {
 	fn clone(&self) -> Self {
 		let (ref time, ref client) = *self.client.read();
 		Client {
 			client: RwLock::new((time.clone(), client.clone())),
 			pool: self.pool.clone(),
 			limit: self.limit.clone(),
 		}
 	}
 }
 impl Client {
-	fn with_limit(limit: Option<usize>) -> Result<Self, Error> {
+	fn new_client() -> Result<Arc<reqwest::Client>, Error> {
 		let mut client = reqwest::Client::new()?;
 		client.redirect(reqwest::RedirectPolicy::limited(5));
 		Ok(Arc::new(client))
 	}
 	fn with_limit(limit: Option<usize>) -> Result<Self, Error> {
 		Ok(Client {
-			client: Arc::new(client),
+			client: RwLock::new((time::Instant::now(), Self::new_client()?)),
 			pool: CpuPool::new(4),
 			limit: limit,
 		})
 	}
 	fn client(&self) -> Result<Arc<reqwest::Client>, Error> {
 		{
 			let (ref time, ref client) = *self.client.read();
 			if time.elapsed() < time::Duration::from_secs(CLIENT_TIMEOUT_SECONDS) {
 				return Ok(client.clone());
 			}
 		}
 		let client = Self::new_client()?;
 		*self.client.write() = (time::Instant::now(), client.clone());
 		Ok(client)
 	}
 }
 impl Fetch for Client {
@ -112,12 +141,19 @@ impl Fetch for Client {
 	fn fetch_with_abort(&self, url: &str, abort: Abort) -> Self::Result {
 		debug!(target: "fetch", "Fetching from: {:?}", url);
 		match self.client() {
 			Ok(client) => {
 				self.pool.spawn(FetchTask {
 					url: url.into(),
-			client: self.client.clone(),
+					client: client,
 					limit: self.limit,
 					abort: abort,
 				})
 			},
 			Err(err) => {
 				self.pool.spawn(futures::future::err(err))
 			},
 		}
 	}
 }
--- a/util/fetch/src/lib.rs
+++ b/util/fetch/src/lib.rs
@ -21,6 +21,7 @@ extern crate log;
 extern crate futures;
 extern crate futures_cpupool;
 extern crate parking_lot;
 extern crate reqwest;
 pub extern crate mime;