SLING-3380 Make sure added, changed, and removed properties are actully
   added to the ADDED event otherwise this information is lost and depending
   event consumers may fail (e.g. the ResourceResolver mapper supporting
   Vanity Path mappings)


git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1568214 13f79535-47bb-0310-9956-ffa450edef68