Carthage support

[silentninja]

I am getting the follow error when using carthage

Dependency "StatefulTableView" has no shared framework schemes for any of the platforms: iOS

The xcodeproj folder is missing, I think that is causing the error.

[timominous]

@silentninja Sorry for the delayed response. I haven't added Carthage support to the lib yet. You can add it if you want. If not, I'll add it to my TODO list and get to it around next week.