Update references to ffmpeg header files to match new directory structure.  All ffmpeg headers should now be accessed through: 
* <libpostprocess/postprocess.h>
* <libswscale/swscale.h>
* <libavutil/avutil.h>
* <libavcodec/avcodec.h>
* <libavformat/avformat.h>

Add a --marq-refresh option to specify the format string refresh period in ms. Core statistics are only refreshed every 1 sec (see src/input/input.c) so we'll need some changes to the core if we want sub-second updates of stats data.

Someone please double check that this is not bogus!

Compile XvMC. Disabled the subtitles part for that. Commented a few things. This can't be good, but at least it compiles (not link yet).

control/media_instance.c: Avoid multiple libvlc_MediaInstanceReachedEnd, by providing different events for pausable and seekable state changes. (Thanks to Jacques Boileau).

* coding style fixes (please don't do [NSString string], but use an empty constant. It's faster and nicer)

misc/objects.c: Make sure vlc_object_get won't return free-ed objects, by doing an atomic refcount decrease and object removal from the object list bank.

contribs/extras: Compensate for shortfalls in ffmpeg's svn repository.  Will submit shortfalls as bugs + patch back to ffmpeg dev team.

cmake: Try to compensate for new ffmpeg directory structure by setting HAVE_LIBSWSCALE_TREE if swscale.his found.

misc/objects.c: Print more info about what was the parent or what were the children if vlc_object_destroy() failed.