
Closes #1043440: "Disabled filter commands can still be outfilters."
Just gotta check conf.supybot.commands.disabled() and if it's in there, pretend
it doesn't exist

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