Reimplemented set to be more general.
Reimplemented set to be more general.

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