* This function needs to get called whenever the session changes from
* not-logged-in to logged-in, either by an explicit login by the user or
* by a timed-out session automatically re-establishing with a little help
* from the browser cookie. Either way, we need to load access controls and
* preferences from the server.
*
* This function needs to get called whenever the session changes from
* not-logged-in to logged-in, either by an explicit login by the user or
* by a timed-out session automatically re-establishing with a little help
* from the browser cookie. Either way, we need to load access controls and
* preferences from the server.
*