* commit '43e7f079':
  flvenc: only write the framerate tag based on avg_frame_rate

Conflicts:
	tests/ref/lavf/flv_fmt
	tests/ref/seek/lavf-flv_fmt
	tests/ref/seek/vsynth2-flv
	tests/ref/vsynth/vsynth1-flashsv
	tests/ref/vsynth/vsynth1-flv
	tests/ref/vsynth/vsynth2-flashsv
	tests/ref/vsynth/vsynth2-flv
Merged-by: Michael Niedermayer <michaelni@gmx.at>