Adding a sample GUI page to visualize topology.
diff --git a/features/features.xml b/features/features.xml
index 1d4da58..9f5f6c8 100644
--- a/features/features.xml
+++ b/features/features.xml
@@ -62,7 +62,6 @@
         <feature>onos-core</feature>
         <bundle>mvn:io.netty/netty/3.9.2.Final</bundle>
 
-        <!--bundle>mvn:org.projectfloodlight/openflowj/0.3.8-SNAPSHOT</bundle-->
         <bundle>mvn:org.onlab.onos/onos-of-api/1.0.0-SNAPSHOT</bundle>
         <bundle>mvn:org.onlab.onos/onos-of-ctl/1.0.0-SNAPSHOT</bundle>
 
@@ -71,4 +70,10 @@
         <bundle>mvn:org.onlab.onos/onos-of-provider-host/1.0.0-SNAPSHOT</bundle>
     </feature>
 
+    <feature name="onos-app-tvue" version="1.0.0"
+             description="ONOS sample topology viewer application">
+        <feature>onos-core</feature>
+        <bundle>mvn:org.onlab.onos/onos-app-tvue/1.0.0-SNAPSHOT</bundle>
+    </feature>
+
 </features>