minidlna 1.1.4

Update to latest stable release, update (only different line numbers)
and integrate patch.

Remove unused libav dependency in favor of ffmpeg.

Compilation with Clang was fixed in 1.1.3.

Add git repo as HEAD, add dependencies for building from git master.
minidlna: add 1.1.4 bottle.

Closes #32291.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>