Signed-off-by: Pierre d'Herbemont <pdherbemont@free.fr>

Access plugins are now responsible for selecting the correct
media location, either the URL-without-scheme form or the local file
path form. This will help solve weird bugs with the current file://
URL decode hack, e.g. it does not work for directory://.

Lets see if we also need this for access_demux plugins (normally,
they don't use files).

This plugin does not use its MRL at all (?!).

It also fixes es_format_IsSimilar.

osd_widget.c and video_widget.c has been merged.

It reduces the number of executed vlc_object_find.
Some macosx calls have been commented out.

It avoid acessing private vout fields and will allows
rendering at the display size (not yet done).

Always return 1 argument, but avoid pushing 0xffffffff bytes on the stack
Also fix vlclua_fd_read()

This happens when there are multiple descriptions on event (multilanguage epg).
Only use the first one per event. Maybe someday we handle epg-language as same
as subtitle-language preference.

Fixes warning

ffmpeg-mt and gradfun

gradfun.h is a stripped copy of mplayer vf_gradfun.c (a function has been renamed).

(This seems like a toolchain bug)

This restores the original logic from
c77ee763