Support state change notifications

- defined state change event channel name
- added IEventChannelListener implementations to PathCalcRuntimeModule class
- register IntentStateList class to KryoFactory

Change-Id: Ibf09ca0d400954cba27e4dbc3f8c97a91d261435
diff --git a/src/test/java/net/onrc/onos/intent/PathIntentTest.java b/src/test/java/net/onrc/onos/intent/PathIntentTest.java
index 3c76f3f..211a68a 100644
--- a/src/test/java/net/onrc/onos/intent/PathIntentTest.java
+++ b/src/test/java/net/onrc/onos/intent/PathIntentTest.java
@@ -14,6 +14,9 @@
 import com.esotericsoftware.kryo.io.Input;
 import com.esotericsoftware.kryo.io.Output;
 
+/**
+ * @author Toshio Koide (t-koide@onlab.us)
+ */
 public class PathIntentTest {
 	NetworkGraph g;