Building with Carthage is broken

[ruipfcosta]

Trying to build Pantomime with Carthage results in the following build error:

...

=== BUILD TARGET Pantomime (tvOS) OF PROJECT Pantomime WITH CONFIGURATION Release ===

Check dependencies
The “Swift Language Version” (SWIFT_VERSION) build setting must be set to a supported value for targets which use Swift. This setting can be set in the build settings editor.
warning: no umbrella header found for target 'Pantomime (tvOS)', module map will not be generated

** ARCHIVE FAILED **

[ruipfcosta]

I submitted a PR which fixes this issue #10

[izaakf]

+1 @ruipfcosta
Code signing seems to broken for the project.

[volodymyr-rudenok-perform]

There should be added "master" branch to cartfile, to fix Carthage installation, like this:
github "thomaschristensen/Pantomime" "master"