Merge remote-tracking branch 'qatar/master'

* qatar/master:
  flvdec: remove spurious use of stream id
  lavf: deprecate r_frame_rate.
  lavf: round estimated average fps to a "standard" fps.

Conflicts:
	ffmpeg.c
	ffprobe.c
	libavformat/avformat.h
	libavformat/electronicarts.c
	libavformat/flvdec.c
	libavformat/rawdec.c
	libavformat/utils.c
	tests/ref/fate/iv8-demux

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