Added specs for checkout_controller_decorator
Moved scope by_loyalty_points to module
Added scope for Loyalty Points Payment Method
Modified rspecs
some todo comments deleted as they have completed, some more todos added related to rspecs
Added missing rspecs
Added rspecs
some todos removed which have been completed
resolve conflict in spec/controllers/spree/checkout_controller_decorator_spec.rb
two todos removed as they have been completed
version changed to 1.0.2