Adds a branch for unlimited project hierarchy.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/work@2148 e93f8b46-1217-0410-a6f0-8f06a7374b81

nested_projects/db/migrate/061_add_roles_builtin.rb

@@ -0,0 +1,9 @@
+class AddRolesBuiltin < ActiveRecord::Migration
+  def self.up
+    add_column :roles, :builtin, :integer, :default => 0, :null => false
+  end
+
+  def self.down
+    remove_column :roles, :builtin
+  end
+end