LibYuv: Updating convert file: 1. Adding RawToI420 2. Adding support for odd dimensions 3. Removing I420ToRGB565Android and updating I420ToRGB565 to support negative height as invert 4. Adding convert class 5. Removing YV12 functionality 6. Adding I420ToBGRA 7. Coding style updates
Review URL: http://webrtc-codereview.appspot.com/214006

git-svn-id: http://libyuv.googlecode.com/svn/trunk@20 16f28f9a-4ce2-e073-06de-1de4eb20be90