HBASE-9115 HTableInterface.append operation may overwrites values (Ted Yu)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1509921 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9087 Handlers being blocked during reads (Elliott)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1509922 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8949 hbase.mapreduce.hfileoutputformat.blocksize should configure with blocksize of a table (rajeshbabu)

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