Implement proper combat rating multiplier system.
Fix Rune of Reorigination to use rating multipliers for proc choice.

Monk & Warrior & Shaman & Druid:
Replace ugly rating multiplier hacks with the new rating multiplier system.

Death Knight:
Change Death Shroud proc choice to properly account combat rating multipliers.



git-svn-id: http://simulationcraft.googlecode.com/svn/trunk@17315 3b4652a1-8050-0410-ac47-3d40261b0f8b