moved ajax method of seeking new messages into separate script to avoid updating app session atime value; patched cron expire_sessions.pl - had stopped working

moved authen_config from lims_config.pl to main LIMS app - CUSTOM callback doesn't work when cfg loaded using Class::Singleton instance; modified idle timeout function to automatically load logged-in username in login screen, so only passwd required, and added link to logout if different user; cgiapp_prerun checks form param username matches authen; added region_code back to user_locations + admin functions

added new region_code col to user_locations table; updated admin user_location function + validation to reflect

added a user messaging system; user change registered email resource

moved login.tt from site to login/default.tt; used authen->is_new_login to redirect to C::Login::hello(); moved code to generate new diagnosis list from LIMS::_create_user_profile() to C::Login::hello(); new db table user_message + DB class