hbase-8816: Add support of loading multiple tables into LoadTestTool

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1510057 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8978 Restore TestLogRollAbort upon review

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1510066 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9120 ClassFinder logs errors that are not

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1510095 13f79535-47bb-0310-9956-ffa450edef68
hbase-9098: During recovery use ZK as the source of truth for region state

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1510102 13f79535-47bb-0310-9956-ffa450edef68