[ONOS-3634] Enhance app to have a category, icon, URL and readme

This commmit enhances application to have category, icon, URL and
readme. The web GUI and CLI will be implemented in separate commits

Change-Id: Ib02716d7118cc617b24f196f2213ea1fe99a34be
diff --git a/apps/vtn/app/app.xml b/apps/vtn/app/app.xml
index 37bba34..5834bb4 100644
--- a/apps/vtn/app/app.xml
+++ b/apps/vtn/app/app.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright 2015 Open Networking Laboratory
+  ~ Copyright 2015-2016 Open Networking Laboratory
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.
@@ -15,10 +15,11 @@
   ~ limitations under the License.
   -->
 <app name="org.onosproject.vtn" origin="ON.Lab" version="${project.version}"
+     category="default" url="http://onosproject.org"
      featuresRepo="mvn:${project.groupId}/${project.artifactId}/${project.version}/xml/features"
      features="${project.artifactId}">
     <description>${project.description}</description>
-
+    <readme>Virtual tenant network application.</readme>
     <artifact>mvn:${project.groupId}/onos-app-vtn-mgr/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-app-sfc-mgr/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-app-vtn-web/${project.version}</artifact>
diff --git a/apps/vtn/app/pom.xml b/apps/vtn/app/pom.xml
index 7f209ed..f148df9 100644
--- a/apps/vtn/app/pom.xml
+++ b/apps/vtn/app/pom.xml
@@ -1,12 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- ~ Copyright 2014 Open Networking Laboratory ~ ~ Licensed under the Apache
-    License, Version 2.0 (the "License"); ~ you may not use this file except
-    in compliance with the License. ~ You may obtain a copy of the License at
-    ~ ~ http://www.apache.org/licenses/LICENSE-2.0 ~ ~ Unless required by applicable
-    law or agreed to in writing, software ~ distributed under the License is
-    distributed on an "AS IS" BASIS, ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY
-    KIND, either express or implied. ~ See the License for the specific language
-    governing permissions and ~ limitations under the License. -->
+<!--
+  ~ Copyright 2014-2016 Open Networking Laboratory
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>
diff --git a/apps/vtn/sfcmgr/pom.xml b/apps/vtn/sfcmgr/pom.xml
index 32e65a3..88dda53 100644
--- a/apps/vtn/sfcmgr/pom.xml
+++ b/apps/vtn/sfcmgr/pom.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
   ~ Copyright 2015 Open Networking Laboratory
   ~
diff --git a/apps/vtn/vtnmgr/pom.xml b/apps/vtn/vtnmgr/pom.xml
index b087f84..bc5b7ab 100644
--- a/apps/vtn/vtnmgr/pom.xml
+++ b/apps/vtn/vtnmgr/pom.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
   ~ Copyright 2015 Open Networking Laboratory
   ~
diff --git a/apps/vtn/vtnrsc/pom.xml b/apps/vtn/vtnrsc/pom.xml
index b134361..b2f1e6b 100644
--- a/apps/vtn/vtnrsc/pom.xml
+++ b/apps/vtn/vtnrsc/pom.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
   ~ Copyright 2015 Open Networking Laboratory
   ~
diff --git a/apps/vtn/vtnweb/pom.xml b/apps/vtn/vtnweb/pom.xml
index b448b35..fdbfe00 100644
--- a/apps/vtn/vtnweb/pom.xml
+++ b/apps/vtn/vtnweb/pom.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
   ~ Copyright 2015 Open Networking Laboratory
   ~