* UG & DG updates from Dale. Hopefully the final doc set, but team review still pending.
* Fixed GATEWAY ROLE duplication when HA is deployed (auto deployment mode).
* Fixed the issue with ozzie/hadoop_httpfs init scripts being active
  (CM host inspector - auto deployment mode). Don't use chkconfig --del, use chkconfig
  service off to prevent suceeding service restarts.
* Made the THP regex pattern more specific - match on ^[\t ]* and $ to limit the search
  to line boundaries. Added code to only re-write the THP config files on explicit
  state changes.
Merge pull request #165 from Paul-Webster/pull-req-release-hadoop-2.3-master-a44ab1828bfcf01414b0fe5eb008812b9719ca92

Hadoop 2.3.1 - RC #4 [1/1]