Updating bit.ly api version and correctly handling pro accounts.
Updating bit.ly api version and correctly handling pro accounts.

zinuzoid/silver_bird,studioddtonline/Silverbird-M,studioddtonline/Silverbird-M,zinuzoid/silver_bird,bdonlan/chromed_bird,cezarsa/silver_bird,zinuzoid/silver_bird,cezarsa/silver_bird