HBASE-10579 ExportSnapshot tool package incorrectly documented (Aleksandr Shulman)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1571200 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10525 Allow the client to use a different thread for writing to ease interrupt

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1571210 13f79535-47bb-0310-9956-ffa450edef68