HBASE-8229 Replication code logs like crazy if a target table cannot be found.

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1464275 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8230 Possible NPE on regionserver abort if replication service has not been started

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1464282 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8188 Avoid unnecessary row compare in StoreScanner

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1464286 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8231 delete tests in table_tests.rb(TestShell) always running on empty table

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1464289 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7599  Port HBASE-6066 (low hanging read path improvements) to 0.94 - retry (Devaraj Das)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1464295 13f79535-47bb-0310-9956-ffa450edef68