cherry pick  acfb585 into score_rules
Cuke for billing tab visibility
	* based on company use_billing flag
Cuke for seeing the Services tab
	* based on company use_billing flag
Cuke for seeing Suppress Billing on Project edit/show
	* based on company use_billing flag
Added spec for Project#billing_enabled?
cucumber authentiaction step projects become optional
cucumber setup for score rules
cucumber for score rules div diplayed only if allowed
cucumber features for score rules on property page