patched C::R::Misc::get_lab_test_results_for_lab_section() to return 0 on empty @lab_test_ids to avoid empty_list error further down; replaced SOAP::Lite with SOAP::WSDL PDS:: classes in C::R::PatientDemographics; patched error in lantronix.pl

new role to replace PAS with PDS (in progress); modified activity_data.pl to exempt PB accompanying BMA[T] from charge