Added better handling for OverflowError
Added better handling for OverflowError

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