Refactoring of daemon:

* gui and daemon are in the same process
 * commands that require network are sent to the daemon
 * open only one gui window per wallet

lib/__init__.py

@@ -11,5 +11,4 @@ import transaction
 from transaction import Transaction
 from plugins import BasePlugin
 from commands import Commands, known_commands
-from daemon import NetworkServer
 from network_proxy import NetworkProxy