Made continuous updates happen

mytwitter.py

@@ -98,6 +98,9 @@ class MyTwitter():
                 pane_text += ' (' + str(pane.get_num_new_tweets()) + ')'
             self.tweet_notebook.get_tab_label(pane).set_label_text(pane_text)
 
+        # We have to return true, so the timeout_add event will keep happening
+        return True
+
 
     def update_windows_callback(self, widget):
         self.update_windows()