HBASE-9075 [0.94] Backport HBASE-5760 Unit tests should write only under /target to 0.94

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1509572 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9075 [0.94] Backport HBASE-5760 Unit tests should write only under /target to 0.94 (addendum patch to fix Hadoop2 build)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1509873 13f79535-47bb-0310-9956-ffa450edef68
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)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1509923 13f79535-47bb-0310-9956-ffa450edef68