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/util/serializers/KryoFactory.java b/src/main/java/net/onrc/onos/core/util/serializers/KryoFactory.java
index 9fdc506..18de585 100644
--- a/src/main/java/net/onrc/onos/core/util/serializers/KryoFactory.java
+++ b/src/main/java/net/onrc/onos/core/util/serializers/KryoFactory.java
@@ -25,7 +25,7 @@
 import net.onrc.onos.core.packetservice.BroadcastPacketOutNotification;
 import net.onrc.onos.core.packetservice.PacketOutNotification;
 import net.onrc.onos.core.packetservice.SinglePacketOutNotification;
-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;
@@ -197,7 +197,7 @@
         kryo.register(LinkTuple.class);
 
         // New data model-related classes
-        kryo.register(DeviceEvent.class);
+        kryo.register(HostEvent.class);
         kryo.register(LinkedList.class);
         kryo.register(LinkEvent.class);
         kryo.register(PortEvent.class);
@@ -221,7 +221,7 @@
         kryo.register(IntentStateList.class);
         kryo.register(HashMap.class);
 
-        // Device-related classes
+        // Host-related classes
         kryo.register(HashSet.class);
         kryo.register(Host.class);
         kryo.register(Date.class);