wowwiki.wikia.com/wiki/Patch_1.8.0
Druids
Due to significant talent changes, talent points for Druids have been refunded and can be respent. Training costs for all talent spell/ability replacements have been significantly reduced.
Hurricane - No longer a talent. Now available to all Druids at level 40. Damage and Mana cost increased on all ranks. Spell is now cast on a targeted area up to 30 yards away and affected by Nature's Reach. Multiple Druids casting Hurricane will no longer stack the slowdown effect. Radius of effect decreased slightly.
Remove Curse - Updated tooltip to reflect that it's usable on friendly targets only.
Shapeshifting - Fixed a bug where the Chilled effect caused by Ice Armor/Frost Armor was not removed properly when shapeshifting.
Swipe - Self cooldown removed.
Tranquility - Cooldown reduced to 5 minutes. Mana cost reduced by 25%.
Cat Form - The attack power bonus from the base cat form will now calculate correctly on zoning or logging in.
Considering Hurricane was never a talent here, I guess this is all already in the game? Tranquillity buffs wow! Amazing!