Add Ancient Fury to list of Merged Spells

Ancient Fury is cast by the Ret Paladin's Guardian when it expires, causing it to explode and deal AoE damage to all nearby targets.
Change Rip merge interval to 2 seconds

This allows Rip to be merged only when the player has it on multiple targets. With a default 3 second merge it merges every other tick on a single target.
Merge pull request #44 from aggixx/patch-1

Add Ancient Fury to list of Merged Spells