new MLPA worklits for new MLPA lab-section - needs rewrite of pcr_and_sequancing _worksheet which is a mess; added department_id to index for DB::EmailContact to allow same location and email address to have multiple departments; adapted M::LabTest::get_section_lab_test() to accept (section name or section.id) + (test name or field label)

simplified report_notification script, replaced 3 separate timestamp-based queries with 1 request_history query looking for specific actions; removed result_summary change from notification triggers; added linked lab-tests to MPLA deployment script

new MPLA lab-section deployment script; amended trigger definitions; corrected error in genomics xsd file; tested for existence of self_authorisable.yml file or some print_view.t tests fail