HBASE-8151 Decode memstoreTS in HFileReaderV2 only when necessary

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HBASE-8160 HMaster#move doesn't check if master initialized

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HBASE-8148  Allow IPC to bind on a specific address


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HBASE-8030 znode  path of online region servers is hard coded in rolling_restart.sh(rajeshbabu)

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HBASE-8166 Avoid writing the memstoreTS into HFiles when possible

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