Enabled playground CI validation for iOS and tvOS.
Enabled playground CI validation for iOS and tvOS.

ohwutup/ReactiveCocoa,walkingsmarts/ReactiveCocoa,calebd/ReactiveCocoa,walkingsmarts/ReactiveCocoa,ohwutup/ReactiveCocoa,ohwutup/ReactiveCocoa,calebd/ReactiveCocoa,calebd/ReactiveCocoa,walkingsmarts/ReactiveCocoa