have ^megahal$ trigger a no-input reply from the megahal module.

mostly useful for chaining random bot nonsense into other commands

modules/MegaHAL.py

@@ -65,6 +65,8 @@ class MegaHAL(Module):
                 append_nick = True
 
             reply = self.megahal.get_reply(line)
+        elif re.search('^megahal$', line, re.IGNORECASE) is not None:
+            reply = self.megahal.get_reply_nolearn('')
         else:
             self.megahal.learn(line)