fix #80--intermingled writers were not flushing and therefore behaving inconsitently on different streams in eclipse vs maven

(cherry picked from commit 4c0cff9)

Author: sammefford

src/main/java/com/marklogic/client/alerting/RuleDefinition.java

@@ -262,12 +262,15 @@ public void write(OutputStream out) throws IOException {
 					"description", RequestConstants.RESTAPI_NS);
 			serializer.writeCharacters(getDescription());
 			serializer.writeEndElement();
+			serializer.flush();
 
 			// logger.debug("Send: " + new String(queryPayload));
 			XMLEventWriter eventWriter = factory.createXMLEventWriter(out);
 			for (XMLEvent event : this.queryPayload) {
 				eventWriter.add(event);
 			}
+			eventWriter.flush();
+			out.flush();
 
 			writeMetadataElement(serializer);