Release app version 2.6.0 with API version 2.6.0

Change-Id: I73af5c0010431d3619aed88ab1c88f28e62a125e
diff --git a/api/pom.xml b/api/pom.xml
index 55ba960..9df6a8a 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.opencord</groupId>
         <artifactId>mcast</artifactId>
-        <version>2.6.0-SNAPSHOT</version>
+        <version>2.6.0</version>
         <relativePath>../pom.xml</relativePath>
     </parent>