Attempt to add compatibility for Carthage

Merge pull request #1935 from robcos/master

Making sure the project can be built on a case sensitive file system

Incorporating additional fixes to bring CocoaPods users up to date

Merge pull request #1768 from arthurchenjs/master

Update GPUImageMovie.m

0.1.5: Minor tweak on framework search paths to get this to compile on iOS a…

…s a standalone.