Added CM GATEWAY role to the cluster nodes to properly discover the edge/HA node cases.
Disable the default ozzie and http_httpfs init scripts. CM already handles this in internal service startup.
Merge pull request #163 from Paul-Webster/pull-req-release-hadoop-2.3-master-bb2ad4a817f16ae4742accc2848f6905fb1701d6

Hadoop 2.3.1 fixes for open defects. Changes will be in RC #2. [1/1]
* Removed the apostrophe from the Hadoop user guide menu pull down to be consistent with the crowbar user guide menu item.
* Added raise Errno::ECONNREFUSED, "CM - ERROR: Cannot create CM API resource" on cm-server connection failures in order to force a cm-api retry.
* Only set node[:clouderamanager][:cluster][:cm_api_configured] = true if cm-api executions succeeds. Force this value to false if the cm-server connection fails.
Merge pull request #164 from Paul-Webster/pull-req-release-hadoop-2.3-master-da098b9d92838c336b00709c5d8a305804fa1797

user guide menu pick change + force cm-api retry on cm-server connection failure. [1/1]
* 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]