SLING-3451 : Support for deep reads from a value map
SLING-3453 : Provide an utility method to unwrap a resource object

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1577527 13f79535-47bb-0310-9956-ffa450edef68
SLING-3451 : Support for deep reads from a value map


git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1577529 13f79535-47bb-0310-9956-ffa450edef68