patched x264.c to export js_api_transcode function.

Signed-off-by: Lucky <lekatahanas@gmail.com>
patched osdep.h to remove _builtin_prefetch asm compiler intrinsic.
Signed-off-by: Lucky <lekatahanas@gmail.com>
patch osdep.h to fix up typo issue.
Signed-off-by: lucky <lekatahanas@gmail.com>
Memory tracing option
Merge branch 'patches' of github.com:sbalko/x264 into patches