IDEMPIERE-1044 Load testing / minor, comments about selenium/jmeter IDGenerator usage

org.adempiere.ui.zk/WEB-INF/zk-selenium.xml

@@ -2,6 +2,10 @@
 
 	<!--
 		zk.xml Copyright (C) 2006 Potix Corporation. All Rights Reserved.
+		
+		Instructions:
+		Add next parameter to the VM arguments of the server launcher
+		-Dorg.zkoss.zk.config.path=file://${workspace_loc}/org.adempiere.ui.zk/WEB-INF/zk-selenium.xml
 	-->
 
 <zk>

org.adempiere.ui.zk/WEB-INF/zk.xml

@@ -46,7 +46,7 @@
 		</system-config>
 	-->
 
-	<!-- uncomment the following for selenium testing -->
+	<!-- uncomment the following for selenium testing / see zk-selenium.xml for an easier way -->
 	<!--  system-config>
 		<id-generator-class>org.adempiere.webui.AdempiereIdGenerator</id-generator-class>
 	</system-config -->