URL: Update URL.last so that getopts args are only .lower()'d if they're a string.
URL: Update URL.last so that getopts args are only .lower()'d if they're a string.

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