rename topology related objects: Device -> Host

- KVDevice to be renamed later.
- Use fully qualified name for topology's Host. (HostManager.java)

Change-Id: I1538f96d7ca93ca2197d23e5a69b85d284611412
diff --git a/src/main/java/net/onrc/onos/core/topology/web/serializers/TopologyEventsSerializer.java b/src/main/java/net/onrc/onos/core/topology/web/serializers/TopologyEventsSerializer.java
index e5f81c0..713969b 100644
--- a/src/main/java/net/onrc/onos/core/topology/web/serializers/TopologyEventsSerializer.java
+++ b/src/main/java/net/onrc/onos/core/topology/web/serializers/TopologyEventsSerializer.java
@@ -1,6 +1,6 @@
 package net.onrc.onos.core.topology.web.serializers;
 
-import net.onrc.onos.core.topology.DeviceEvent;
+import net.onrc.onos.core.topology.HostEvent;
 import net.onrc.onos.core.topology.LinkEvent;
 import net.onrc.onos.core.topology.PortEvent;
 import net.onrc.onos.core.topology.SwitchEvent;
@@ -87,14 +87,14 @@
 
         // Output the added hosts array
         jsonGenerator.writeArrayFieldStart("addedHosts");
-        for (final DeviceEvent hostEvent : topologyEvents.getAddedHostEvents()) {
+        for (final HostEvent hostEvent : topologyEvents.getAddedHostEvents()) {
             jsonGenerator.writeObject(hostEvent);
         }
         jsonGenerator.writeEndArray();
 
         // Output the removed hosts array
         jsonGenerator.writeArrayFieldStart("removedHosts");
-        for (final DeviceEvent hostEvent : topologyEvents.getRemovedHostEvents()) {
+        for (final HostEvent hostEvent : topologyEvents.getRemovedHostEvents()) {
             jsonGenerator.writeObject(hostEvent);
         }
         jsonGenerator.writeEndArray();