* commit '481575d2':
  avconv: remove -deinterlace

Conflicts:
	Changelog
	doc/ffmpeg.texi
	ffmpeg.c
	ffmpeg_opt.c

The merge removes the documentation for the deprecated -deinterlace
the code itself has already been replaced a while ago by code
that inserts yadif, that insertion code is left in place.
Merged-by: Michael Niedermayer <michaelni@gmx.at>