OAK-1525 - VersionHistory.getAllVersions - sort history contents by creation date

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1576391 13f79535-47bb-0310-9956-ffa450edef68
OAK-1522 Provide PojoSR based RepositoryFactory implementation

fixing JDK1.7 compilation problems

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1576420 13f79535-47bb-0310-9956-ffa450edef68