Qt4 - Open Disc Dialog, finish the disc/track-sub/audio handling. Hide, rename, show correctly the buttons. Some other ui fixes.

Qt4 Detection: Use uic-qt4 and moc-qt4 if disponible. Will help ppl that have qt3 and qt4 installed to build VLC.

* rss.c: Test fix for a bug i can't reproduce (most likely due to a missing 0 at the end of string). See http://forum.videolan.org/viewtopic.php?p=112026#112026 for details.

Discard samples before demux is ready
Timeout if no samples received
Header file tidy up

Patch courtesy of Tapio Hiltunen, Technical Research Center of Finland

* removed some dead code and corrected some minor stuff from the previous commits. Thanks for the fixes, Pierre!

Hotkeys: Enable mouse wheel up/down and left/right usage. (mapped respectivly to volume up/down, and position forward/backward). This commit needs review.

memleak in MediaControl_snapshot

Add news about proxy support for MMSH streams (please add these kind of news when you commit the features!)

- wxwidgets: for win32, patch movie wxSlider underlying control behaviour so that jumps are replaced by abosolute seeks, need a few more tweaks

* don't use emacs when compiling gettext on non-win32 platforms. This fixes the compilation on future darwin releases.

               - Repair the quit-VLC-but-let-the-menu W32 bug,
               - add an option to start VLC minimized.

mediacontrol API: split old mediacontrol_exception_init behaviour into mediacontrol_exception_create/mediacontrol_exception_init