move openalias from plugins to core

lib/commands.py

@@ -34,6 +34,7 @@ from bitcoin import is_address, hash_160_to_bc_address, hash_160, COIN
 from transaction import Transaction
 import paymentrequest
 from paymentrequest import PR_PAID, PR_UNPAID, PR_UNKNOWN, PR_EXPIRED
+import contacts
 
 known_commands = {}
 
@@ -78,7 +79,7 @@ class Commands:
         self.network = network
         self._callback = callback
         self.password = None
-        self.contacts = util.Contacts(self.config)
+        self.contacts = contacts.Contacts(self.config)
 
     def _run(self, method, args, password_getter):
         cmd = known_commands[method]