Merge remote-tracking branch 'qatar/master'

* qatar/master:
  fate: Add FATE tests for the Ut Video encoder
  lavc: add Ut Video encoder
  mpegvideo_enc: remove stray duplicate line from 7f9aaa49
  swscale: x86: fix #endif comments in rgb2rgb template file
  avconv: mark more options as expert.
  avconv: split printing "main options" into global and per-file.
  avconv: refactor help printing.

Conflicts:
	Changelog
	ffmpeg_opt.c
	ffserver.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>