completed molecular pcr worksheet functions

admin config for linked lab-tests; added linked lab-test functions to more tests scripts

changed method of determining whether lab test supported by specimen type from lab-section specimen types datamap to lab-test specimen types datamap

standardised all Model classes using Moose to read 'extends' then 'with'; moved M::R::ReportUpdate::_do_additional_tests to M::R::LabTest::Update::auto_request_additional_tests() for sharing with M::R::ResultsUpdate::do_results_summary_update() so result summary input can auto-request new lab tests - required reconfiguration of additional_tests.yml; changed order of result summary drop-down and textbox entries when joined to form single string

update report function now logs edits to all report fields; fixed all broken tests so far

fixed broken tests after adding patient notes to screening page

updated tests to work with Test::WWW::Mech changes (eg text_contains works where has_tag_like fails)

restored request_lab_test_history function in M::R::ReportUpdate::_do_additional_tests(); DevelCycle only called for dev server (was excluded only for fastcgi); new additional_test.t