Release version 4.2.1

Change-Id: I0c1398527ed264914e2682ae9f5d9e17fdce9f58
diff --git a/app/pom.xml b/app/pom.xml
index 051b3b7..968d865 100644
--- a/app/pom.xml
+++ b/app/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.opencord</groupId>
         <artifactId>olt</artifactId>
-        <version>4.2.1-SNAPSHOT</version>
+        <version>4.2.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>