ONOS-686, 687, 1344 : The first commit for the Segment Routing application
 - ICMP/ARP/IP handlers are implemented as a part of the application for now
 - Default routing and link add/failure/recovery are also supprted
 - Temporary NetworkConfigHandler, which is hardcoded to support only 6 router FISH topology, is used for test
 - Some fixes on GroupHanlder app to support transit routers
 - Supports multi-instance (tested with two instances)

Change-Id: Idfa67903e59e1c4cac4da430f89cd4c50e821420
diff --git a/apps/grouphandler/src/main/java/org/onosproject/grouphandler/DefaultGroupHandlerApp.java b/apps/grouphandler/src/main/java/org/onosproject/grouphandler/DefaultGroupHandlerApp.java
index bb1a035..d8183d5 100644
--- a/apps/grouphandler/src/main/java/org/onosproject/grouphandler/DefaultGroupHandlerApp.java
+++ b/apps/grouphandler/src/main/java/org/onosproject/grouphandler/DefaultGroupHandlerApp.java
@@ -90,6 +90,7 @@
     public void activate() {
         appId = coreService.registerApplication("org.onosproject.defaultgrouphandler");
         log.info("DefaultGroupHandlerApp Activating");
+
         deviceService.addListener(deviceListener);
         linkService.addListener(linkListener);
         for (Device device: deviceService.getDevices()) {
@@ -111,6 +112,7 @@
                           device.id());
             }
         }
+
         log.info("Activated");
     }