HBASE-8814 Possible NPE in split if a region has empty store files; RESTORE FOR SECOND TIME

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HBASE-8881 TestGet failing in testDynamicFilter with AbstractMethodException

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1500143 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8881 TestGet failing in testDynamicFilter with AbstractMethodException; REMOVE OVERCOMMIT

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1500145 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/0.94' into 0.94-gd
Merge remote branch 'origin/0.94-gd' into fb-YAHOO-325-0.94-gd