IPC handshake (negotiating protocol/api version)

Upgrade logic between versions

executive tracing cleanup

* Ethcore-specific rpc methods

* Initializing ethcore-rpc

* Allow block sealing mechanism to be forced, even when not mining.

* Fix deadlock in dispatch_transaction. Fix tests.

* Horrible workaround for transaction importing.

* Reduce tracing. Cleanups.

* Remove logging.

* Remove broken code inherited from dodgy implementation.

* pre-query tx queue nonce also if any

* remove outside nonce queries

* remove queue nonces

updated dependencies

Fixed send transaction deadlock

* fixed eth_getLogs

* removed empty lines

create provided custom dir for keys if none

* spec loading cleanup in progress

* changed engine field in json spec

* refactored engine params

* polishing spec loading refactor

* fixed compiling json tests

* fixed compiling parity

* removed warnings

* removed commented out code

* fixed failing test

* bringing back removed TODO in spec.

WebApps HTTP Basic Auth Support

Removing match on constant

Conflicts:
	ethcore/src/account.rs

Update auth.rs