patched M::Roles::HistoryAction to clear actions list before sending diagnosis status alerts via cron, otherwise action list is cumulative for each successive array of addresses
moved C::Request::_send_email_alert() to C::Roles::RecordHandler for sharing with L::Local::EmailAlert; new class L::Local::EmailAlert; moved L::Local::Reports function to L::Local::LIMS for use with L::Local::EmailAlert and L::Local::Reports which provide LIMS environment for cron scripts; new cron unsent_diagnosis_status_alert.pl