Backports to beta (#2068)

* Fix several RPCs (#1926)

* Fix up pending receipts details.

* Add support for additional params and registry over RPC.

* Fix tests.

* Add test, additional fix.

Fixes #1932.

* Fix up tests.

* Fix test.

* Fix test.

* DB WAL size limit (#1935)

* Limit WAL size

* Check pruning by db modification date (#1924)

* Cache address hash (#1943)

* ECIES without MAC (#1948)

* Use random IV for ECIES AES

* ECIES encrypt/decrypt for a single message

* Derive IV from shared secret

* Apply settings to column families

* fixed #1933 (#1979)

* Fixed neighbours collection (#1996)

* dapps-hosts configuration

* Disabled counter check

* always process trie death row on commit, add more tracing

* fixed transaction addresses mapping, fixes #1971

* simplified iterator

* v1.3.1

* v1.3.1

ethcore/src/client/test_client.rs

@@ -21,9 +21,10 @@ use util::*;
 use devtools::*;
 use transaction::{Transaction, LocalizedTransaction, SignedTransaction, Action};
 use blockchain::TreeRoute;
-use client::{BlockChainClient, MiningBlockChainClient, BlockChainInfo, BlockStatus, BlockID,
-	TransactionID, UncleID, TraceId, TraceFilter, LastHashes, CallAnalytics,
-	BlockImportError};
+use client::{
+	BlockChainClient, MiningBlockChainClient, BlockChainInfo, BlockStatus, BlockID,
+	TransactionID, UncleID, TraceId, TraceFilter, LastHashes, CallAnalytics, BlockImportError
+};
 use header::{Header as BlockHeader, BlockNumber};
 use filter::Filter;
 use log_entry::LocalizedLogEntry;
@@ -517,6 +518,10 @@ impl BlockChainClient for TestBlockChainClient {
 	fn clear_queue(&self) {
 	}
 
+	fn additional_params(&self) -> BTreeMap<String, String> {
+		Default::default()
+	}
+
 	fn chain_info(&self) -> BlockChainInfo {
 		BlockChainInfo {
 			total_difficulty: *self.difficulty.read(),