changed RDBO_DEBUG flag to RDBO_DEBUG_ON; view_lantronix_log function - unfinished; hilis4.fcgi checks for CENTRE env var and checks pidfile before creating new

patched LIMS & L::Local::LIMS to use /sessions dir for cron sessions

moved DEBUG_OFF=1 env flag from cron command to SKIP_RDBO_DEBUG env var set in L::Local::LIMS BEGIN block

bugfixes to L::Local::LIMS::_build_session() & mail_reports.pl

added interface to icdo_category table to config/diagnosis admin section

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