Added audio processing callback for GPUImageMovieWriter
Add category on GPUImage to allow replacing a sub texture of GPUPicture
Fix up logic for redraw
Fix assert logic
Fixed realtime recording
Fixed incorrectly rotated images in Mosaic Filter.
Fixed small inconsistency in example code
Fix movie playback issue on Simulator.
Revert "Merge branch 'simulator-fix'"

This reverts commit fe3f5472b0ee5fececba4d9f1182fff675beae35, reversing
changes made to 94d937b37a3f11a372702ff33971457fb1a807cf.
Fix wrong statement of “not equal to” AVKeyValueStatusLoaded.
Created a Mac Swift FilterShowcase. Created entries for almost all filter operations in the Swift FilterShowcases.
Fixed the bad merge on the movie updates.
Added an attribute to prevent warnings about a new property.