add the HCFS_CLIENT role.
Merge branch 'branch-1.2' of https://github.com/roofmonkey/ambari.git into branch-1.2
Merge branch 'branch-1.2' of https://github.com/roofmonkey/ambari into branch-1.2

Conflicts:
	ambari-agent/src/main/python/ambari_agent/AmbariConfig.py
Merge branch 'branch-1.2' of https://github.com/roofmonkey/ambari.git into branch-1.2
Adding mapping from HCFS_SERVICE_CHECK to "HCFS Service Check" for
installer display purposes (avoids "Executing undefined").