Conflicts:
	ethcore/src/account.rs

Enabling webapps compilation by default

fixed #895

Support for compile-time included WebApplications.

Conflicts:
	parity/main.rs

Propagate transaction queue

Use new json RPC server

Gracefully dying when trying to enable RPC and app is compiled without it.

Conflicts:
	parity/main.rs

Additional logging and friendlier error messages

Avoid signalling readiness when app is about to be closed.