Build and test with both iOS and watchOS (Travis's Build Matrix)
Build and test with both iOS and watchOS (Travis's Build Matrix)

Stole some of the new .travis.yml file from
https://github.com/Alamofire/Alamofire/blob/master/.travis.yml

NicholasTD07/TDRedux.swift,NicholasTD07/TDRedux.swift,NicholasTD07/TDRedux.swift