Introduced invoices and deliveries. Integration (especially of deliveries) isn't finished yet.

test/fixtures/messages.yml

@@ -1,3 +1,19 @@
+# == Schema Information
+# Schema version: 20090102171850
+#
+# Table name: messages
+#
+#  id           :integer(4)      not null, primary key
+#  sender_id    :integer(4)
+#  recipient_id :integer(4)      default(0), not null
+#  recipients   :string(255)     default(""), not null
+#  subject      :string(255)     default(""), not null
+#  body         :text            default(""), not null
+#  read         :boolean(1)      not null
+#  email_state  :integer(4)      default(0), not null
+#  created_on   :datetime        not null
+#
+
 # Read about fixtures at http://ar.rubyonrails.org/classes/Fixtures.html
 one:
   id: 1