HBASE-10615 Make LoadIncrementalHFiles skip reference files (Jerry He)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1574736 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10649 TestMasterMetrics fails occasionally

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1574738 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10662 RegionScanner is never closed if the region has been moved-out or re-opened when performing scan request



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1574743 13f79535-47bb-0310-9956-ffa450edef68