Adirelle:
	- Added a "stacks" highlight, that actually only shows the number of stacks.
	- Priest: fixed WordOfMending rule.
	Fixes GH-163.
	- Added Ursol's Vortex to the list of slows.
Guillaume Perréal:
	- Priest: fixed WordOfMending rule.
Adirelle:
	- Priest: show stacks of Word of Mending on Prayer of Mending.
	Fixes GH-153.
	- Shaman: suggests casting Lava Burst during Lave Surge.
	Fixes GH-161.
	- Deep copy item rules to avoid handler pollution on rebuild.
	Should fix GH-90.
	- Added an new model attribute "flash", to replace model.highlight = "flash".
	Fixes GH-150.
	- Use LibButtonGlow-1.0 for flashing animation.
	Hopefully fix tainting errors.
	Fixes GH-149.
Guillaume Perréal:
	- Added GetSpellCharges to the safe list.
	Fixe GH-147.
Adirelle:
	- Provide a fake background to Masque, to avoid masking the underlying button.
	Fix #145.
