[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/dhcp/app/pom.xml b/apps/dhcp/app/pom.xml
index e013894..42c31b7 100644
--- a/apps/dhcp/app/pom.xml
+++ b/apps/dhcp/app/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright 2014 Open Networking Laboratory
+  ~ 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.
@@ -33,7 +33,6 @@
     <description>DHCP Server application</description>
 
     <properties>
-        <onos.app.name>org.onosproject.dhcp</onos.app.name>
         <web.context>/onos/dhcp</web.context>
         <api.version>1.0.0</api.version>
         <api.title>DHCP Server REST API</api.title>