Hosts should never send packets with TTL=0

psz_uri is NEEDED - it determines the destination for SAP announces
Go read the code before you commit

* modules/video_output/x11/xcommon.c: support cropping to i_visible_width/height in xvideo (not implemented in x11 yet).

* src/video_output/video_output.c: get rid of hack for for grey line with hdtv streams (proper way is to have video outputs support cropping to i_visible_width/height).

* src/video_output/vout_pictures.c: use fmt_in.i_visible_width/height and i_sar_num/den in vout_PlacePicture().

http://www.itamarst.org/writings/win32sockets.html

  does what it should (if set to "false", the window is hidden
  when the theme is loaded for the first time)

- now Windows machines are able to stream even 20 Mbps HDTV over TCP
- resolves  http://forum.videolan.org/viewtopic.php?t=8374

* src/video_output/video_output.c: revert #12904 which is useless since it is already done in vout_IntfInit().

* use the latest ffmpeg-cvs again. Included dionoea's build fix (rev. [12607]). Thanks to xtophe for pointing this out.

* I think this should fix the width & height params of vout. If anyone sees anything wrong with it, please say so. Report thx to Greg Farell. fixes #399

* beware of AC_ARG_WITH

* fix ffmpeg extra flags

  m=video 1234 udp 33      for raw UDP
  m=video 1234 RTP/AVP 33  for RTP