Added httpUrl converter.
Added httpUrl converter.

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