Update prepare spec task for Rails 5
Update prepare spec task for Rails 5

Rails 5 now wants the database environment set.

mtomov/alchemy_cms,chalmagean/alchemy_cms,mamhoff/alchemy_cms,mamhoff/alchemy_cms,mixandgo/alchemy_cms,AlchemyCMS/alchemy_cms,chalmagean/alchemy_cms,mtomov/alchemy_cms,chalmagean/alchemy_cms,mixandgo/alchemy_cms,mtomov/alchemy_cms,AlchemyCMS/alchemy_cms,AlchemyCMS/alchemy_cms,robinboening/alchemy_cms,mixandgo/alchemy_cms,mixandgo/alchemy_cms,chalmagean/alchemy_cms,robinboening/alchemy_cms,mtomov/alchemy_cms,mamhoff/alchemy_cms,robinboening/alchemy_cms