Release version 1.6.0

Change-Id: Icc6fbd362d5f9f706a13c13c9ff266047423f139
diff --git a/pom.xml b/pom.xml
index c215e72..a157da6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
 
     <groupId>org.opencord</groupId>
     <artifactId>vtn</artifactId>
-    <version>1.6.0-SNAPSHOT</version>
+    <version>1.6.0</version>
     <packaging>bundle</packaging>
 
     <description>Virtual tenant network service for CORD</description>