Added test to make sure overlong regexps don't slip through.
Added test to make sure overlong regexps don't slip through.

frumiousbandersnatch/supybot-code,mazaclub/mazabot-core,Ban3/Limnoria,mazaclub/mazabot-core,ProgVal/Limnoria-test,kblin/supybot-gsoc,Ban3/Limnoria,prashantpawar/supybot-rothbot,raboof/supybot,buildbot/supybot,haxwithaxe/supybot,ProgVal/Limnoria-test,jeffmahoney/supybot