Changes to the barclamp to accomodate an option for thp disable/enable.
Merge pull request #149 from vinayakponangi/pull-req-release-pebbles-master-4d502f3fa81ba3b07fe1c4820ee27c4c3a0643ce

UI Changes to provide option to enable/disable THP compaction on Datanodes. [1/1]