SLING-4001 - Resource Editor contribution

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1632548 13f79535-47bb-0310-9956-ffa450edef68
SLING-4001 - avoid snapshot

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1632549 13f79535-47bb-0310-9956-ffa450edef68