OAK-1824 DocumentNodeStore "lease update thread" is not a daemon thread

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1594872 13f79535-47bb-0310-9956-ffa450edef68
OAK-1825 Randomized test to compare storage engines (WIP)

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1594878 13f79535-47bb-0310-9956-ffa450edef68
OAK-301 : oak docu

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1594879 13f79535-47bb-0310-9956-ffa450edef68
OAK-1822: NodeDocument _modified may go back in time

Additional test showing the diff issue when _modified is set back in time

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1594888 13f79535-47bb-0310-9956-ffa450edef68
OAK-1820: Set _lastRev on insert when new node is also commit root

Add missing DocumentNodeStore.dispose() at the end of the test.

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1594889 13f79535-47bb-0310-9956-ffa450edef68
OAK-301 : oak docu

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1594929 13f79535-47bb-0310-9956-ffa450edef68
Adding benchmarks LoginUserTest and LoginLogoutUserTest that use a normal user instead of the special admin

this closes #19

git-svn-id: https://svn.apache.org/repos/asf/jackrabbit/oak/trunk@1594987 13f79535-47bb-0310-9956-ffa450edef68
Merge branch 'upstream-trunk' into OAK-1570
increased the number of nodes to be created to increase the chance of
the test to fail
added a sleep time for allowing the cluster to sync
increased the number of nodes for increasing chances of failure and
removed the @Ignore as it's no longer failing.