moved part_number from optional to required for storage input validation; added multi_many_ok to search_requests_count() eg for specimen & request_summary searches - both 1-to-many fields
bugfix: model methods do_specimen_code_update() and new_request() delay do_specimen_associated_lab_tests() until after new specimens loop to avoid problem with Moose attr request_specimen_sample_type() loading only once - for 1st specimen type
replaced loading of Local::DBIxSimple in individual model classes with single loading in Model::Base; renamed DBIxSimple::get_meta to dbix_get_meta to avoid clash with Model::Base::get_meta (now renamed get_meta_data); fixed report.t - new method report_diff replaced comment
added request_specimen_detail table to get_single_request() method for displaying specimen_taken date on tt view, as request_report_view requires request to have been reported
added datetime specimen taken to registration and print_view pages; removed CPA icon from report display (interferes with messaging lionks); changed colours on additional comments display
