Fixed not to raise some exceptions during testing.
Fixed not to raise some exceptions during testing.

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