HBASE-8172 Fix ./bin/*.rb scripts or remove them

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HBASE-7908 Add jstack logs in hbase-common.sh when killing the server

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1461166 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8005 DemoClient.cpp can not be built correctly

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