New annotation, because of db switch to mysql.

Background: sqlite has some problems with decimal option.

app/models/delivery.rb

@@ -18,12 +18,13 @@ class Delivery < ActiveRecord::Base
   
 end
 
+
 # == Schema Information
 #
 # Table name: deliveries
 #
-#  id           :integer         not null, primary key
-#  supplier_id  :integer
+#  id           :integer(4)      not null, primary key
+#  supplier_id  :integer(4)
 #  delivered_on :date
 #  created_at   :datetime
 #  note         :text