threat: don't hide the element in Enable
altpowerbar: Change HasScript to GetScript

Change HasScript to GetScript to provide the intended functionality  for displaying the alt power bar's tooltip.
Merge pull request #205 from Rainrider/threat

Threat: don't hide element in Enable
power: UNUSED is now called CHI
Merge pull request #208 from Rainrider/power

power: UNUSED is now called CHI
units: Adding two generic boss events.
power: optimize a bit
altpowerbar: fixed visibility.

Always show on player.
Show on group units if showOnRaid is true.
Show on any unit unless hideFromOthers is true.
stagger: add monk's stagger bar
stagger: minor optimization.
stagger: update on UNIT_AURA instead of using an OnUpdate script.
stagger: stance-based visibility.
stagger: added a hook to override the internal visibility function.
stagger: small optimization.
Bump TOC interface version to 5.4 (50400).
Bump TOC version to 1.6.6.
LICENSE: I don't even...
stagger: hide element in Enable.

This should fix the issue pointed out by Rainrider, see https://github.com/haste/oUF/commit/ac2fb02e3a572c2fd53ddefd17f77021127c2e1a#commitcomment-4974904.
Merge pull request #213 from Adirelle/stagger-fix

stagger: hide element in Enable.
colors: fixed HCYtoRGB that was returning values greater than 1.