(text subs with mpg aren't working anymore unless using ps2)

Special thanks to Groniche and Google.

 * input: fixed "position" value as soon as possible after a see, this
way the intf doesn't show strange seek bar behavour.

introduced bugs).

* modules/gui/wxwindows/video.cpp: implement vout_ControlWindow().
* modules/video_output/directx/events.c, modules/video_output/x11/xcommon.c:
  + call vout_ControlWindow() when resizing in embedded mode.
  + implemented a VOUT_REPARENT/CLOSE mode in Control() so the interface can signal that it closes its video window.

 * mpgv: demux -> demux2.

demux2, and will be decreased as soon as demux -> demux2 is finished).

 implemented _only_ when it has a high precision.

implemented _only_ when it has a high precision.

worst until we completly switch to demux2...)

   If you change the layout all anchorings are lost, except for anchors that
   are in the same position in the old and the new layouts.
   Adding more 'persistent' anchorings should not be very difficult.

   + added a --video-title option, courtesy of Hornsby Adrian.
* modules/video_output/directx/directx.c: minor changes.

* modules/misc/playlist : native playlist export
* configure.ac : playlist and export need libxml2

   + check for lrintf() and fallback on rint().