Example of use : <field name="user_id" string="Project Manager" context="{'default_groups_ref': ['base.group_user', 'project.group_project_manager']}"/> will add Employee (base.group_user) and Project Manager (project.group_project_manager) groups, as well as implied groups.
res_users:
- [add] added support of key in context of default_get. It contains a list of xml_ids of user groups; those groups, if found, are added to the newly created user,
- [ref] refactored simplified (quick create) view that is now more like a contact card, with login and email required because of the login email that will be send to the user
bzr revid: tde@openerp.com-20130318120905-1w9xpoyppnj62wlj