Major Shadow Priest update

Shadow Priest now fully released!
Modifiers:
- Left Shift: Mind Sear (It's sensitive, holding down the button will
make you chain cast it! Profile will not interrupt it itself.)
- Left Alt: Halo / Cascade / Divine Star
- Right Alt: Mass Dispel
- Right Shift: Dispersion (Sensitive, will not remove Dispersion!)

* Dotting is now working again!
* Boss dotting is now fully supported again
* Multidotting is now fully supported again

+++ Lots of bugfixes.