OAK-1858 Segment Explorer
 - decoupled hard refs to the segmentids / segments from the UI

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1620287 13f79535-47bb-0310-9956-ffa450edef68
JCR-3765: JCR Event Info should contain NodeType
Re-enable GetInfoTest as we now have the relaxed test expectation from JCR-3765

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1620305 13f79535-47bb-0310-9956-ffa450edef68