TRUNK-3867: getPatientIdentifiers(String identifier, List<PatientIdentifierType> patientIdentifierTypes, List<Location> locations, List<Patient> patients, Boolean isPreferred) does not restrict by location
TRUNK-3851 - Modules should be able to define message codes outside of their module's namespace (tweak to change property name to "openmrs.property.ALLOW_KEYS_OUTSIDE_OF_MODULE_NAMESPACE")