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

added auto-screen function to registration section

bugfixes to allow test suite to pass

added ability to restrict non-network users to own records; added missing _debug_path() to controller methods

enabled request options (urgent, private & copy_to) in search function; moved Devel::Cycle function from LIMS to L::Local::DevelCycle

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