* ./modules/video_output/directx/events.c: start the colorkey search at 10,

  * ./modules/video_output/directx/events.c: start the colorkey search at 10,
    not 5, to avoid using a color used by another application.
  * ./modules/video_output/directx/events.c: support for drawing in a parent
    window instead of creating our own; still a bit flakey.

  * ./mozilla/vlcshell.cpp: we can now compile the Mozilla plugin so that it
    does not call libvlc (for testing purposes).