public void started() {
		log.info("Started Dermatology");
		GlobalProperty installedVersion = Context.getAdministrationService().getGlobalPropertyObject(
		    DermatologyConstants.INSTALLED_VERSION_GP);
		if (installedVersion == null) {
			installedVersion = new GlobalProperty(DermatologyConstants.INSTALLED_VERSION_GP, "0");
		}
		if (Integer.valueOf(installedVersion.getPropertyValue()) < DermatologyConstants.METADATA_VERSION) {
			//Context.flushSession(); //Flush so that purges are not deferred until after data import
			DataImporter dataImporter = Context.getRegisteredComponent("dataImporter", DataImporter.class);
			dataImporter.importData("metadata-concepts.xml");
			installedVersion.setPropertyValue(DermatologyConstants.METADATA_VERSION.toString());
		}
		Context.getAdministrationService().saveGlobalProperty(installedVersion);
	}