Updated .gems for dm-core

.gems

@@ -1,2 +1,2 @@
 sbfaulkner-sinatra-helpers -s http://gems.github.com
-
+dm-core --version '>= 1.0.0'

lib/models.rb

@@ -19,7 +19,7 @@ class Payment
   
   belongs_to :service
   belongs_to :supplier
-  belongs_to :directorate, { :through => :service }
+  has 1, :directorate, { :through => :service }
 
   def url
     SITE_URL + "payments/" + @id.to_s