add mnemonic functions to module

lib/__init__.py

@@ -4,3 +4,5 @@ from verifier import WalletVerifier
 from interface import Interface, pick_random_server, DEFAULT_SERVERS
 from simple_config import SimpleConfig
 import bitcoin
+from mnemonic import mn_encode as mnemonic_encode
+from mnemonic import mn_decode as mnemonic_decode

lib/interface.py

@@ -75,7 +75,7 @@ class Interface(threading.Thread):
     def queue_json_response(self, c):
 
         # uncomment to debug
-        # print "<--",c
+        # print_error( "<--",c )
 
         msg_id = c.get('id')
         error = c.get('error')