Try to fix movie playback

Change-Id: I7ade571159141433e45077cbf252ce997900508e
Update ignore file

Change-Id: Ie69f4c069962b95aebb2ad74f27a1b8140e48a5c
Adopt to XCode 6 Beta 5

* Can't implicitly check for absent on aptionals ;-(
* Protocol constructors have to be 'required'

Change-Id: I72d8fa8ee3b626edf2ed45624fe14fff59e8cab1