Release app version 2.8.0 with API version 2.8.0

Change-Id: I0583080e006b1fd507e532e2e23050cfa8d863a4
diff --git a/api/pom.xml b/api/pom.xml
index 04ffdfc..f06b840 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.opencord</groupId>
         <artifactId>mcast</artifactId>
-        <version>2.8.0-SNAPSHOT</version>
+        <version>2.8.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>