HBASE-8984 Test online snapshots with online merge

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1505790 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8780 A column Family can have VERSIONS less than zero (Demai Ni)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1505801 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9007 TestReplicationKillSlaveRS.killOneSlaveRS fails; ADDENDUM/FIX

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1505803 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9012 TestBlockReorder.testBlockLocationReorder fails

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1505808 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9018 Add timeouts on all tests in TestHLogSplit

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1505817 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-HBASE-8559-trunk-gd