Comment 22 for bug 269191

Done, here is the debdiff with debian marillat's version:
  * Merge from debian-multimedia (LP: #269191). Remaining changes:
    - debian/copyright: add some copyright information
    - Suggest ffmpeg (needed for firewire capture)
    - added quilt patches system in debian/rules and .pc/.version
  * 01_desktop_file.patch: delete deprecated entries from kdenlive.desktop
    (LP: #173754)
  * Adapt version number for libmlt++-dev, libavcodec-dev and libavformat-dev
    dependencies
  * Add libmlt-dev dependency