Adds podspec validation.
Adds podspec validation.

kzaher/RxSwift,KyoheiG3/RxSwift,petester42/RxSwift,tottakai/RxSwift,thanegill/RxSwift,tottakai/RxSwift,hsoi/RxSwift,petester42/RxSwift,ashfurrow/RxSwift,kousun12/RxSwift,cfraz89/RxSwift,KyoheiG3/RxSwift,Pluto-tv/RxSwift,shiratsu/RxSwift,ashfurrow/RxSwift,shiratsu/RxSwift,hsoi/RxSwift,hsoi/RxSwift,thanegill/RxSwift,kousun12/RxSwift,kzaher/RxSwift,cfraz89/RxSwift,cfraz89/RxSwift,ReactiveX/RxSwift,kzaher/RxSwift,tottakai/RxSwift,petester42/RxSwift,Pluto-tv/RxSwift,thanegill/RxSwift,kousun12/RxSwift,KyoheiG3/RxSwift,kzaher/RxSwift,ashfurrow/RxSwift,ashfurrow/RxSwift,thanegill/RxSwift,ReactiveX/RxSwift,petester42/RxSwift,cfraz89/RxSwift,ReactiveX/RxSwift,Pluto-tv/RxSwift,hsoi/RxSwift,shiratsu/RxSwift,kousun12/RxSwift,Pluto-tv/RxSwift