Corrected import paths for print_error.

lib/gui.py

@@ -23,7 +23,7 @@ import pygtk
 pygtk.require('2.0')
 import gtk, gobject
 from decimal import Decimal
-from lib.util import print_error
+from util import print_error
 
 import pyqrnative, mnemonic
 

lib/gui_qt.py

@@ -18,7 +18,7 @@
 
 import sys, time, datetime, re
 from i18n import _
-from lib.util import print_error
+from util import print_error
 
 try:
     import PyQt4

lib/interface.py

@@ -21,7 +21,7 @@ import random, socket, ast, re
 import threading, traceback, sys, time, json, Queue
 
 from version import ELECTRUM_VERSION
-from lib.util import print_error
+from util import print_error
 
 DEFAULT_TIMEOUT = 5
 DEFAULT_SERVERS = [ 'ecdsa.org:50001:t',