make catchup regex insensitive, use alt wording

history/ircplugin.py

@@ -12,7 +12,7 @@ logger = logging.getLogger(__name__)
 class History(Plugin):
     """Watch the history of IRC channels and try to track what users may have missed."""
 
-    what_missed_regex = r'what did I miss\?$'
+    what_missed_regex = r'(?i)(what did I miss\?|did I miss anything\?)$'
 
     def start(self):
         """Set up the handlers."""