* modules/gui/wxwindows/bookmarks.cpp: bookmarks support is back.

 You can now use multiple sdp=
 (ex: rtp{dst=ip,port=nb,sdp=file://a.sdp, sdp=http://localhost:8080/a.sdp})

front of a option name) to allow handling of multiple string options.

* Removed the old SAP code. announce.? in modules/stream_out is 
  still required for SLP announces.

* modules/access/screen/*: added a win32 only --screen-fragment-size option to do a kind of progressive capture by splitting the screen in several fragments. This does help user interactivity while capturing but also produces artefacts when moving windows around.

* modules/audio_output/waveout.c: added a --no-waveout-float32 option to disable the use of float32 audio output.

* modules/access/dvdnav.c: very basic probing that avoids doing a dvdnav_open() on files when they are not DVD images.
* src/input/input.c: auto-probe access_demux as well.
* modules/access/vcd/vcd.c: raised priority above the file access one.

* updated TODO and NEWS

* modules/access/vcd/vcd.c: try to skip bad sectors.

  * Plugin now works perfectly in milj. of colors
  * Works in thousands of colors, in inverse colors

  (expect some breakage).
* modules/video_filter/blend.c: new alpha-blending module.

* modules/demux/mpeg/*: removed old MPEG TS/PS demuxers.

  This way we bypass Apple's very, very, very unoptimized
  I420 -> YUY2 routine and use titer's altivec optimized one.
  Quartz output is herefore now altivec optimized and close to the opengl output.

  Testing would be welcomed very much.