New annotation, because of db switch to mysql.

Background: sqlite has some problems with decimal option.

test/fixtures/memberships.yml

@@ -1,12 +1,3 @@
-# == Schema Information
-#
-# Table name: memberships
-#
-#  id       :integer         not null, primary key
-#  group_id :integer         default(0), not null
-#  user_id  :integer         default(0), not null
-#
-
 # Read about fixtures at http://ar.rubyonrails.org/classes/Fixtures.html
 first:
   group: admins
@@ -15,3 +6,13 @@ second:
   group: bananas
   user: test
   
+
+# == Schema Information
+#
+# Table name: memberships
+#
+#  id       :integer(4)      not null, primary key
+#  group_id :integer(4)      default(0), not null
+#  user_id  :integer(4)      default(0), not null
+#
+