fix stuffing byte removal in NAL unit input
fix YUV overlay for odd frame resolutions
Don't include "malloc.h", functions available from "stdlib.h".
Implement "ALLOC_ALIGNED" for OSX.
Merge pull request #32 from fancycode/osx_memalign

Fixes for OSX
improvement add_task() by lock free circle queue

circle queue may lost a little cache performance, but reduce memove
support hash display for decoder verify
CRLF