Mark unavailable properties for tvOS/watchOS as such in ParseMutableClientConfiguration.
Mark unavailable properties for tvOS/watchOS as such in ParseMutableClientConfiguration.

gonzalonunez/Parse-SDK-iOS-OSX,ParsePlatform/Parse-SDK-iOS-OSX,podkovyrin/Parse-SDK-iOS-OSX,gonzalonunez/Parse-SDK-iOS-OSX,podkovyrin/Parse-SDK-iOS-OSX,ParsePlatform/Parse-SDK-iOS-OSX