meta option 'meta.pubmsg_ignore_bot_prefix' to have module not try [] recursion.

handy for the alias module, which will want to preserve that recursion stuff (if
it shows up) after it does its alias lookup

Module.py

@@ -121,7 +121,13 @@ class Module(object):
         else:
             what = addressed_re.sub('', what)
 
-        if replypath is not None:
+        skip_recursion_scan = False
+        try:
+            skip_recursion_scan = self.config.getboolean(self.__class__.__name__, 'meta.skip_recursion_scan')
+        except NoOptionError: pass
+        except NoSectionError: pass
+
+        if replypath is not None and skip_recursion_scan is False:
             what = self.try_recursion(connection, event, nick, userhost, replypath, what, admin_unlocked)
 
         # try reloading