fix i18n yaml issue
allow creation of ordergroup and user by admin at the same time
make sure user edit form still works at other places than creating a new one
Merge branch 'rails3-selfsignup' into foodcoop

Conflicts:
	app/controllers/admin/users_controller.rb
	app/views/admin/users/_form.html.haml
	config/locales/en/en.admin.yml