media_list.c: Handle item addition and removal in the flat list. Also Get the media_list to init and release the flat media list.

- ffmpeg-skip-frames    values: -1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frames
- ffmpeg-skip-idct	values: -1=None, 0=Default, 1=B-frames, 2=P-frames, 3=B+P frames, 4=all frame)

- Add option to force chroma.
- Add option to force aspect ratio.
- Add option to disable tty handling for systems where framebuffer and console are on different terminals.
- Fix memory leaks.

Remove an imbrication in XML parsing, again similar to freetype.c

with vlc_object_release(). Also copied across some Null pointer checks.

being too large in full screen for some video modules.

Fix memory leak by unrefing the GdkPixBuf

Restore svn history for the lua modules (For future reference [21376]: modules/misc/lua: Share some code between the modules that uses lua and put them in a single module.)

- Do not refer to bogus TTL values

There is no way at the moment to know if a file is audio only

Even then rtp.c is quite big...