HBASE-10723 Convert TestExplicitColumnTracker to junit4 test



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1576542 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10601 Upgrade hadoop dependency to 2.3.0 release



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1576543 13f79535-47bb-0310-9956-ffa450edef68