HBASE-7626 Backport client connection cleanup from HBASE-7460

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HBASE-7694 Secure HBase should use repliation call queue (Jieshan Bean)

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HBASE-2611 Handle RS that fails while processing the failure of another one (Himanshu Vashishtha)

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HBASE-7545 [replication] Break out TestReplication into manageable classes (Jean-Daniel Cryans)

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HBASE-7684 NullPointerException in SecureClient when Call is cleaned up due to RPC timeout (cuijianwei)

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HBASE-7705 Make the method getCurrentPoolSize of HTablePool public (cuijianwei)

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HBASE-7685 Closing socket connection can't be removed from SecureClient (cuijianwei)

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HBASE-7545 addendum, increase timeouts for replication tests due to recent failures.

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HBASE-7545 trying with increase timeout for TestReplicationSmallTests.loadTesting

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HBASE-7702: Adding filtering to Import jobs

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HBASE-7702: Adding filtering to Import jobs - Forgot this bit...

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