WIP adding user roles view; adding end datetime to user roles

db/migrate/20130419010051_add_ends_to_user_roles.rb

@@ -0,0 +1,7 @@
+class AddEndsToUserRoles < ActiveRecord::Migration
+  def change
+    add_column(:user_roles, :ends, :timestamp)
+    add_column(:user_roles, :user_id, :integer)
+    remove_column(:users, :role_id)
+  end
+end