Added requireCapability.
Added requireCapability.

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