Added the Quartz listener to cf-tweetstore-spring for CRON functionality

demos/tweetstore/cf-tweetstore-spring/src/main/webapp/WEB-INF/web.xml

@@ -24,10 +24,20 @@
     version="2.5">
     <display-name>jclouds-tweetstore</display-name>
 
+    <context-param>
+        <param-name>quartz:scheduler-context-servlet-context-key</param-name>
+        <param-value>servlet-context</param-value>
+    </context-param>
+
+    <!-- must be started first -->
     <listener>
         <listener-class>org.jclouds.demo.paas.config.PlatformServicesInitializer</listener-class>
     </listener>
-    
+
+    <listener>
+        <listener-class>org.quartz.ee.servlet.QuartzInitializerListener</listener-class>
+    </listener>
+
     <!-- Servlets -->
     <servlet>
         <servlet-name>dispatcher</servlet-name>