- Restored alphabetical order.
- Enhanced sections aac_adtstoasc, dca_core, h264_mp4toannexb.
- Added sections hevc_mp4toannexb and vp9_superframe.
- Renamed (if required) and filled previously empty sections
  mjpegadump, mov2textsub/text2movsub, mp3decomp, and
  remove_extra.
- Fixes ticket #3198.
Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Lou Logan <lou@lrcd.com>