Correct commenting component and add rating component

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1630737 13f79535-47bb-0310-9956-ffa450edef68
Fix rating and comment component

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1630738 13f79535-47bb-0310-9956-ffa450edef68