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To remove, just drag n drop to the void.
To change, just drag n drop to new position.

I will need that to clarify the Toolbar editor.

It previously assumed TRUSTED.
No functionnal/security changes in this commit.

 This will force people to use VLC_INPUT_OPTION_TRUSTED flag when they
need it and ease security review.
 This commit has no functionnal/security changes.

- Set buddies where possible.
- Set tooltips on most labels.

(But, what is the use of that cancel anyway?)

commit. Thou I think it should invalidate current album art, so core would do
new search for it.

 Input manager now emits signal for album art and gives
 url to art itself, so CoverArt or Background-widgets don't
 need to parse it themself, and CoverArt don't need to use
 those callbacks. This ways both get same image too.

 * Make registration thread-safe, and independent on vlc_list_find().
 * Fix use-after-free race condition when destroying the interface
   (interaction will be lost instead).

I used customEvent to implement it.
(It renders the dedicated message thread per subscriber useless with qt4).