Healer Stat Weights

New configuration options:

- added always show option
- added always enabled option

- added font selection

- added ability to choose font color

Addon bugfixes:

- Less likely to experience an "unknown" combat segment

Significant calculation improvements:

- Intellect is now sensitive to multiplier effects of Arcane Intellect & Scroll of Intellect

- Haste is now sensitive to multiplier effects of Bloodlust (all types) & Berserking (Troll Racial)

- Discipline Priest has a significantly improved haste calculation

- Improved versatility DR calculation

- Fixed bug with cast time tracking module