HBASE-7053 port blockcache configurability (part of HBASE-6312, and HBASE-7033) to 0.94 (Sergey Shelukhin)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1402385 13f79535-47bb-0310-9956-ffa450edef68
HBASE-6852 SchemaMetrics.updateOnCacheHit costs too much while full scanning a table with all of its fields (Cheng Hao and LarsH)

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HBASE-6852 REVERT due to test failures.

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HBASE-6846 BitComparator bug - ArrayIndexOutOfBoundsException (Lucian George Iordache)

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HBASE-6700  [replication] empty znodes created during queue failovers aren't
            deleted (Terry Zhang via JD)


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HBASE-7038 Port HBASE-5970 Improve the AssignmentManager#updateTimer and speed up handling opened event to 0.94 (Sergey Shelukhin)



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HBASE-7060 Region load balancing by table does not handle the case where a table's region count is lower than the number of the RS in the cluster (Ted Yu and Tianying)



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    HBASE-7069

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HBASE-7073 OperationMetrics needs to cache the value of hbase.metrics.exposeOperationTimes

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HBASE-7051 CheckAndPut should properly read MVCC

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HBASE-7077 Test for: CheckAndPut should properly read MVCC (Ram)

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HBASE-6904 In the HBase shell, an error is thrown that states replication-related znodes already exist

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HBASE-6852 SchemaMetrics.updateOnCacheHit costs too much while full scanning a table with all of its fields (Cheng Hao and LarsH) - REAPPLY

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1404464 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7077 ADDENDUM, add TestCategory

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HBASE-6852, REVERT again, due to unexplained test failures that only occur on the jenkins machines

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HBASE-6796 Backport HBASE-5547, Don't delete HFiles in backup mode. (Jesse Yates)

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HBASE-7017 Backport '[replication] The replication-executor should make sure the file that it is replicating is closed before declaring success on that file' to 0.94 (Devaraj Das)

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HBASE-6925 Change socket write size from 8K to 64K for HBaseServer (Karthik)

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HBASE-7087 Add to NOTICE.txt a note on jamon being MPL

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HBASE-7086 Enhance ResourceChecker to log stack trace for potentially hanging threads



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