Update Travis CI build script
Update Travis CI build script

joubin/SwiftColors,mmmilo/SwiftColors,sunkanmi-akintoye/SwiftColors,bangslosan/SwiftColors,mmmilo/SwiftColors,poynt/SwiftColors,SatoTakeshiX/SwiftColors,aotian16/SwiftColors,sunkanmi-akintoye/SwiftColors,bangslosan/SwiftColors,aotian16/SwiftColors,tikipatel/SwiftColors,SatoTakeshiX/SwiftColors,tikipatel/SwiftColors,joubin/SwiftColors,poynt/SwiftColors