Improved Inner Rage

Improved Inner Rage was a warrior talent that decreased Inner Rage (beta)'s cooldown up to 2 minutes.
==Ranks==
Rank	Cooldown
1 	- 30 secs.
2 	- 60 secs.
3 	- 80 secs.
4 	- 100 secs.
5 	- 2 mins.
==Patch changes==
*