Added Aura shadows
Moar shadows

Shadows on tooltip statusbar, toggle config button. Changed the min size
at the options to 2, for lighter shadow (adding transparency on the
color would be nice :P)
Registered auras, added Stance bar buttons shadow

Forgot to register the auras shadows. Added Stance bar buttons with
hooks to hide when there is a backdrop, as Azil did with the actionbars
(needs a bit testing though - will do tomorrow).
Added unitframe elements and castbar shadows

Adding shadow on Player or Target frames, has problems in case of
detaching the power, so health, power and portrait should be shadowed
seperately.
Merge pull request #1 from Benik/master

Merging