updater fixes

toxygen/updater.py

@@ -2,6 +2,7 @@ import util
 import os
 import settings
 import platform
+import urllib
 try:
     from PySide import QtNetwork, QtCore
 except ImportError:
@@ -9,6 +10,14 @@ except ImportError:
 import subprocess
 
 
+def connection_available():
+    try:
+        urllib.request.urlopen('http://216.58.192.142', timeout=1)  # google.com
+        return True
+    except:
+        return False
+
+
 def check_for_updates():
     current_version = util.program_version
     major, minor, patch = list(map(lambda x: int(x), current_version.split('.')))