Added a messaging service implementation on top of IOLoop. Added ability to easily switch between netty and io loop (default is netty)

Change-Id: Id9af0756bf0a542f832f3611b486b2ac680b91e4
diff --git a/utils/netty/pom.xml b/utils/netty/pom.xml
index c95412b..9e5677c 100644
--- a/utils/netty/pom.xml
+++ b/utils/netty/pom.xml
@@ -39,6 +39,10 @@
         </dependency>
         <dependency>
             <groupId>org.onosproject</groupId>
+            <artifactId>onos-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.onosproject</groupId>
             <artifactId>onlab-misc</artifactId>
         </dependency>
         <dependency>