Releasing 2.3.1

Change-Id: Ia8d50696437f5325bcc8c2b1ee8ca41a64f5b61d
diff --git a/pom.xml b/pom.xml
index 598d3ea..6f57393 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
     </parent>
 
     <artifactId>onos-yang-tools</artifactId>
-    <version>2.4-SNAPSHOT</version>
+    <version>2.3.1</version>
     <packaging>pom</packaging>
 
     <properties>