Update to build on 10.9
Adding modern .gitignore file.
Updated xib contstraints to remove warnings.
Updated depreciated code warnings.
Added constraints for checkbox window. Removed contstraints for starts since that is handled in frame math currently.
Adding a new AVPlayerLayer so the stars video scales properly to fill the whole screen. Also moved some of the window resizing code to it’s own method so we can call it prior to the first runEffect call and avoid a resize animation of the AVPlayerLayer.