Update jsonrpc dependencies and rewrite dapps to futures. (#6522)

* Bump version.

* Fix RPC crate.

* Fix BoxFuture in crates.

* Compiles and passes tests!

* Get rid of .boxed()

* Fixing issues with the UI.

* Remove minihttp. Support threads.

* Reimplement files serving to do it in chunks.

* Increase chunk size.

* Remove some unecessary copying.

* Fix tests.

* Fix stratum warning and ipfs todo.

* Switch to proper branch of jsonrpc.

* Update Cargo.lock.

* Update docs.

* Include dapps-glue in workspace.

* fixed merge artifacts

* Fix test compilation.

updater/src/updater.rs

@@ -21,7 +21,7 @@ use std::sync::{Arc, Weak};
 
 use ethcore::client::{BlockId, BlockChainClient, ChainNotify};
 use ethsync::{SyncProvider};
-use futures::{future, Future, BoxFuture};
+use futures::future;
 use hash_fetch::{self as fetch, HashFetch};
 use hash_fetch::fetch::Client as FetchService;
 use ipc_common_types::{VersionInfo, ReleaseTrack};
@@ -343,12 +343,12 @@ impl fetch::urlhint::ContractClient for Updater {
 			.ok_or_else(|| "Registrar not available".into())
 	}
 
-	fn call(&self, address: Address, data: Bytes) -> BoxFuture<Bytes, String> {
-		future::done(
+	fn call(&self, address: Address, data: Bytes) -> fetch::urlhint::BoxFuture<Bytes, String> {
+		Box::new(future::done(
 			self.client.upgrade()
 				.ok_or_else(|| "Client not available".into())
 				.and_then(move |c| c.call_contract(BlockId::Latest, address, data))
-		).boxed()
+		))
 	}
 }