local changes for Bristol update: emailed messages contain test notice only if not in production; unreported requests worklist duration taken from config settings; config settings made available to Model classes; moved report output formatting to local template if not RR8
moved HMRN data functions to new C::HMRN; fixed error in C::Test::print_pdf - now passes hashref (not string) to make_pdf(); new DB::PatientDemographic; new rule for capitalisation of $input in LIMS::Dispatch