Should fix  #1191 (Crash in aout_OutputNextBuffer using auhal on Mac OS X).

By Thomas De Rocker and Myckel Habets

This is in accordance with RFC 4337 (currently a Proposed Standard,
see http://tools.ietf.org/html/rfc4337), and makes Firefox3 actually
play my .mp4's.
Signed-off-by: Rémi Denis-Courmont <rdenis@simphalempin.com>

Fix a very small resizing issue of Open Dialog : Reference: http://forum.videolan.org/viewtopic.php?f=14&t=48946

\h patch was removed because it's now include in the mplayer version.

This is a fallback option in case we cannot find a match. We don't set a default actual font, since we do not ship one with VLC. We can set one per platform, but I don't think it is worth the trouble.

libass: ass_set_fonts_dir() is for a "private" storage place for fonts in case any of them need to be extracted.

Since we support fontconfig fontlookup on windows/mac/*nix there should be no real need to actually use this directory, but we still need to set one.

Originally in wrong order because of a blend bug that presented itself on fenrir's setup.

Additionnaly, add check for exception.

this should fix #1778, because with ts-files you don't allways have info about
video-tracks when input is started (and qt4 interface only called
controls->updateInput when status changed).

I didn't create new callback/signal for this one, but it could be cleaner that way.