ircbot: recurse if we had an alias hit

the idea is that there may be two aliases in the string, or the alias
may have created another alias

dr_botzo/ircbot/bot.py

@@ -136,6 +136,8 @@ class DrReactor(irc.client.Reactor):
                 if repl:
                     # we found an alias for our given string, doing a replace
                     event.arguments[0] = repl
+                    # recurse, in case there's another alias in this one
+                    return self._handle_event(connection, event)
 
         with self.mutex:
             # doing regex version first as it has the potential to be more specific