* move the popup dropper init into the playlist window, as it is just so much simpler to do things from there
* have the popup init take the window to parent to as a param
* make the translucency actually work
* get the size of the graphics view right (essentially 2px more than size() reports =)

it really ought to use a qtimeline to fade the background in/out on ctor/dtor, but i can't do all of jefferai's work otherwise what would he have to hack on? ;)