oUF QuickHealth2

Adds QuickHealth-2.0 support to oUF.
QuickHealth is a library that provides unit health updates by predicting them based on combat log messages which makes it slightly faster than the built in unit health, even when frequentUpdates is enabled.

Works on all layouts and doesn't require any specific setting, including frequentUpdates.

Short clip of the plugin in action:
http://www.youtube.com/watch?v=MP5vx9rLLhE

Changelog:

r3:

• TOC bumped to 3.2. Tested as working as fast and quirky as ever without any change.

• Frames with ignoreQuickHealth set won't be hooked. (That's frame.ignoreQuickHealth, not frame.Health.ignoreQuickHealth)

• QuickHealth support is only added to elements, not to tags. That means your health tags will keep updating slowly, and slightly out of sync of your health bars.

• QuickHealth calls for updates with it's own callback, which means standard events and callbacks will be disabled, causing errors for layouts and plugins that call events to update health values. Calling UpdateElement instead fixes these problems.
  Example: oUF_Banzai; oUF_Banzai.lua line 60: f:UNIT_MAXHEALTH("OnBanzaiUpdate", f.unit) edit to f:UpdateElement("Health")

• QuickHealth only calculates predicted health for raid or party members for performance reasons, it falls back to the default (slower than frequentUpdates) method for other units. If you play a dps class you want to set frame.ignoreQuickHealth on your target and focus frames.