Disallow tank spec in BGs

I ask for it becouse %80 of players in beta don't even care how balanced pvp right now or how it will be on lauch. Lots of them (pvpers) playing beta for 1 shot people or survive against whole enemy team and kill them all alone.

İ want to test all classes/specs and give you guys good feedbacks but if you don't do anything soon about tank specs not gonna be able to do that.