[Gemspec] add cocoapods-downloader
[Gemspec] add cocoapods-downloader

Ashton-W/CocoaPods,mglidden/CocoaPods,orta/CocoaPods,ashfurrow/CocoaPods,mglidden/CocoaPods,segiddins/CocoaPods,mglidden/CocoaPods,vivekshukla-mob-ibtech/Repository