As for qt4, offering the possibility to deactivate automatic resizing
is desirable. Reusing the qt parameter is not a problem for skins since
qt4 is a prerequisite.

TODO, rename this parameter with a more interface agnostic name since
the need is for all interfaces.

For a video control, default values are contradictory, in
a sense that a video control is not resizable and autoresize
is true. By default, this results in skins resizing to fit a new video, but
the inner video not using this extra space. (see AirFlow for instance)

This patch ensures that if autoresize is true, default behavior for a video
 control is to be resizeable.

  On windows,
  - libxml2 spawns a 'watchdog' thread, when statically linked.
  - libqt4 spawns a 'watcher' thread.

  These threads clean up remaining ressources once their initiator thread has
  terminated. So, the associated dll must NOT be freed explicitly and blindly.
  Since there is no means to know when these 'cleanup' threads terminate,
  the safe approach is to not free the dlls and let freeing occur when vlc
  terminates.

Close #3333

Apparently, running make check when adding test cases is too difficult.

This reverts commit 786292c3.

Apparently, compiling libvlccore (on any platform) is too much to ask.

This reverts commit 027b4402.

On Windows, skins with on top set were still visible in fullscreen mode

This patch makes fullscreen also a topmost window.

lua need them. Also fix an obvious leak.

Skins did not offer a simple way to get back to normal speed
once user had clicked several times on either slower or faster
rates.

This patch automatically resets rate to normal if user presses play/pause
when an input is already launched. (as suggested in trac #2412)

http://standards.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html#install_icons

This patch redefines the method associated with visibility
to ensure that the latest text is displayed when
the text control gets visible