Fix plugin

It turns out that callback_mention doesn't work for the bot itself, so use
callback_message, and now self.bot_identifier is an object with a long IRC
identifier, so have to get it to be sane string.

justforfun.py

@@ -28,14 +28,14 @@ class Justforfun(BotPlugin):
         self.bad = re.compile(r'\b(silly|bad)\b', re.IGNORECASE)
         self.congrats = re.compile(r'\bcongrat(s|ulations)\b', re.IGNORECASE)
 
-    def callback_mention(self, message, mentioned_people):
+    def callback_message(self, message):
         """ Listens for rude or nice things about the bot """
-        if self.bot_identifier not in mentioned_people:
+        if str(self.bot_identifier).split('!')[0] not in message.body:
             return
 
         if self.good.search(message.body):
-            self.send(message.to, "you're welcome", message)
+            self.send(message.to, "you're welcome", message, True)
         if self.bad.search(message.body):
-            self.send(message.to, "sorry", message)
+            self.send(message.to, "sorry", message, True)
         if self.congrats.search(message.body):
-            self.send(message.to, "thank you", message)
+            self.send(message.to, "thank you", message, True)