Register Intent-related classes to KryoFactory and fix bugs

Change-Id: I591c8788dda31c658a6d985d394653524d884c5d
diff --git a/conf/onos.properties b/conf/onos.properties
index aeff6ec..04e436b 100644
--- a/conf/onos.properties
+++ b/conf/onos.properties
@@ -6,6 +6,7 @@
 net.onrc.onos.ofcontroller.flowmanager.FlowManager,\
 net.onrc.onos.ofcontroller.flowprogrammer.FlowProgrammer,\
 net.onrc.onos.ofcontroller.topology.TopologyManager,\
+net.onrc.onos.intent.runtime.PathCalcRuntimeModule,\
 net.onrc.onos.registry.controller.ZookeeperRegistry
 net.floodlightcontroller.restserver.RestApiServer.port = 8080
 net.floodlightcontroller.core.FloodlightProvider.openflowport = 6633