Added check of world.testing so nasty exceptions aren't printed during testing.
Added check of world.testing so nasty exceptions aren't printed during testing.

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