script runtime displays on nav bar; minor syntax changes to lims_external.fcgi; improved javascript in screen/load_data.tt

new admin/screen/category functions; screening menu uses ajax to populate screening terms manu with selectionbased on screening category

new screen_category table; moved screens 'type' col to category_id; modified all screening terms & screening tests admin functions to accomodate new screen_category table; removed ajax validation from screen description & lab test field_label as these use 2 & 3-col unique keys so can't be validated by AJAX; email reports function uses users secure email address as sender; modifed portal_access function to supply SHA1 hash of current date - so failed login not sent back to portal page without explanation; modified mail_reports.pl to use item names instead of table id accessors

new additional_options.yml file to set DoI flag when screened as HIV

hilis3 conversion scripts for YHHN