Add T15 Guardian set bonuses

[Bisonpasfute]

Add the following T15 set bonuses for Guardian Druid :

• 2P : Each attack you dodge while Savage Defense is active increases the healing from your next Frenzied Regeneration within 10 sec by 10%, stacking up to 10 times. => Improved Regeneration Aura
• 4P : You generate 50% more Rage from your attacks while Enrage is active.

[NerdEgghead]

Nicely done!