OAK-709: Consider moving permission evaluation to the node state level
OAK-781: Clarify / fix effects of MISSING_NODE as base state of NodeBuilder
Correctly handle the case where a node is deleted and has child nodes that are not visible due to access control: also delete those child nodes.

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1485648 13f79535-47bb-0310-9956-ffa450edef68