Release app version 2.9.1 with API version 2.9.1

Change-Id: I44041338d0627a85642b968096bc6914efd794f7
diff --git a/app/pom.xml b/app/pom.xml
index 6c1af9a..bec7774 100644
--- a/app/pom.xml
+++ b/app/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.opencord</groupId>
         <artifactId>mcast</artifactId>
-        <version>2.9.1-SNAPSHOT</version>
+        <version>2.9.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>