Laid foundation for telling Hrafn object how many new tweets all the panes have... may have to iterate over them every time a signal comes in; not sure how to handle closing a tab otherwise...

hrafn.py

@@ -329,6 +329,8 @@ class Hrafn():
             entries=1
 
         new_pane = TweetPane(name, num_entries=entries, single_tweet=single_tweet, is_user=is_user, conversation=conversation)
+        new_pane.connect('new-tweets', self.on_new_tweets)
+        new_pane.connect('tweets-read', self.on_tweets_read)
 
         if is_user:
             new_pane.connect('at-clicked', self.on_at_button_clicked)
@@ -624,6 +626,14 @@ class Hrafn():
             config.write(config_filehandle)
             config_filehandle.close()
 
+
+    def on_new_tweets(self, widget, num_tweets):
+        pass
+
+
+    def on_tweets_read(self, widget, num_tweets):
+        pass
+
 ### end class Hrafn