Unable to compile (installed via Cocoapods) after main project has migrated to Swift 4.2

[MattCarr147]

RevealingSplashView is not currently compatible with Swift 4.2, so once the main project has been migrated it can't be compiled without manually setting the //Swift Language Version// of the RevealingSplashView Target to 'Swift 4'.

Not sure what the preferred way to solve this would be:

• The current podspec could be updated, with the spec.swift_version property set to '4.0'
• Wait until Swift 4.2 has been released fully and migrate accordingly.

I think in either case, ultimately setting the swift_version in the podspec would be useful to avoid this sort of thing in the future.

The build errors themselves aren't serious and look to have been addressed by #45.

[PiXeL16]

Thanks for the recomendations! I'll update when 4.2 its released and add the spec.swift_version accordingly.