BradLarson/GPUImage — pull request #289 by iamcam (2012-07-21 17:35:42+00:00)
Title: Added a hue filter

Here is the hue shifting filter based off of the discussion at SO: [How to change hue of a texture with GLSL?](http://stackoverflow.com/questions/9234724/how-to-change-hue-of-a-texture-with-glsl/9234854#9234854).