Release version 4.2.1

Change-Id: I0c1398527ed264914e2682ae9f5d9e17fdce9f58
diff --git a/api/pom.xml b/api/pom.xml
index 98c5f96..a506e00 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <artifactId>olt</artifactId>
         <groupId>org.opencord</groupId>
-        <version>4.2.1-SNAPSHOT</version>
+        <version>4.2.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>