This is mostly for automated tests. The tests can use the following
commands to start the node:

    ethereum --unencrypted-keys account new
    ...
    ethereum --unencrypted-keys

Conflicts:
	rpc/api.go
	rpc/args.go

Accounts integration

Conflicts:
	rpc/args.go

* Added a generic RawMessage deserialiser
* Updated ethereum.js
* Updated coin test app

Conflicts:
	cmd/blocktest/main.go
	cmd/mist/debugger.go
	cmd/utils/cmd.go

Help for a specific command now shows available subcommands.