Fixed uint deserialization from hex

Tweak timeout and packet size to handle slow networks better

IPC with new serialization

make jsonrpc api engine agnostic

updated cargo.lock

updated parity dependencies

Auto (with codegen) binary serializer 

Fixing transaction queue last_nonces update

import route contains ommited blocks

* fixed encoding 0u8

* simplified if else stmt

Avoid extraneous `U256` operations and split-state local.

RPC shared external miner

Conflicts:
	ipc/codegen/src/codegen.rs

Conflicts:
	parity/main.rs

Additional RPC methods for settings