Marauder mutation/stance change GCD and action bar

[Vigfuss]

I didn't see this listed on the bugtracker, so thought i should mention it.

Currently it takes about 1 gcd for the change mutation animation to do it's thing. The action bar doesn't change right away either, and it's possible to glitch the mutation change by using a skill from another mutation while its changing. This happens easily because the action bar doesn't switch right away. If this happens your stance change goes on CD without actually changing, or sometimes it's only the wrong skill animation going through (which is the lesser problem).

It would be best if the mutation switch happened off GCD as it did in WAR(not sure after which patch), or at least have the action bar change right away. Right now its not really worth switching between Sav/Brut mid fight because of dps loss from switching.