important form-fix for actor new(that one with ajax) ->read more

I changed form_for with fields_for in the partial part, this way the whole new site only contains one form and the submitbutton is now moved from the partial into the new ( the 'main' view). If you plan to add more stuff in the same form, use --> fields_for(:some shit) do |fields|
Merge branch 'master' into edit_actor_types