grep_cron_log.pl sends single email with all errors (was one per msg)

check_portal_referral failure redirects to location-specific home page to allow targetting correct fastcgi process; moved hmrn.patient_treatment.response to foreign key -> response_options table; logo filename dispatched from settings file

dbix lc_cols => 0 for gallium trial data feed for Roche; new cron grep_cron_log.pl