HBASE-8477 [hadoop2] TestTableInputFormatScan* fails intermittently with PriviledgeActionException


git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1478281 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8455 Update ExportSnapshot to reflect changes in HBASE-7419

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1478297 13f79535-47bb-0310-9956-ffa450edef68