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().

* src/input/control.c: INPUT_ADD/DEL_BOOKMARK also modifies the "bookmarks" input option so the bookmarks are kept even when the input is stopped.

* src/input/input.c:
   + introduced input_item_t that is shared between the playlist/vlm and the input thread (contains input name, options, infos, etc...).
   + changed prototype of input_CreateThread() to input_thread_t *input_CreateThread( vlc_object_t *, input_item_t * ).
* ALL: use input_item_t and INPUT_ADD_INFO when necessary.

now you can see at least something with those SAP announces with Latin char encoding.

Works around an issue with some playlist items added by the sap interface : since they aren't coded in UTF8, a blank string is printed. 

This doesn't correct this issue, but at least, it doesn't prevent the item proprieties window from opening anymore.

Modified a little default skin
 -> hiding video window

 (I have changed a ((uint8_t *)op.bytes) -= 4; and I'm not sure what it
was meant to do as op.bytes is a "long")
 

 * livedotcom, mkv: removed all TAB_*.

cast of lvalue. -> Don't use them anymore in C++ code.
( Don't use *(void**)&p, it won't work because of aliasing problem).

 * vlc_meta.h: don't use TAB_* as this file is included in C++ code.

 input: fixed uninitialised variable (i_microsecondperframe for subs)

 from stable, but begin to work. (Tested only with TS).
 Limitation: no synchro with others stream if any (anyway, it would be
a bit stupid to have such stream).