+ Fixed erroneous extra "/" in URLs sent to a proxy.

* src/video_output/video_output.c: fixed video filter on-the-fly switching (use var_Get/Set instead of config_Get/Put).

* modules/codec/dvbsub.c: another bunch of sanity checks to make the decoder more resiliant to bad streams.

  - rewrite using the pixel buffer memory model as described in ETSI EN 300 743.
  - code simplification.
  - more compliant.

* modules/gui/wxwindows/video.cpp: will hopefully fix the gray video problem in embedded mode on win32.

* src/video_output/video_output.c: even uglier fix for the on-the-fly deinterlacing switch problem (but at least it works).

* modules/codec/ffmpeg/ffmpeg.c: use SSE2 detection.

  * po/fr.po: converted to UTF-8 and fixed ellipses.
  * po/en_GB.po: converted to UTF-8 and fixed ellipses.

   interface when moving the mouse to the top of the screen (in
   fullscreen mode).
 - modules/control/hotkeys.c: added a hotkey to raise the interface
 - modules/gui/wxwindows/*, modules/gui/skins2/*: added callbacks for
   the "intf-show" variable; it should be easy to do the same for BeOS
   and MacOSX interfaces

* src/misc/win32_specific.c, modules.c: WinCE improvements (support for finding out the application path + support for the plugins cache).

  bigben: this fixes that last little problem you had with the 'fullscreen button'