OAK-709: Consider moving permission evaluation to the node state level
getLatestRoot should not include transient changes in its index provider

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1466134 13f79535-47bb-0310-9956-ffa450edef68
OAK-709: Consider moving permission evaluation to the node state level
refresh existing permissions provider in rebase instead of allocating a new instance

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1466135 13f79535-47bb-0310-9956-ffa450edef68