CLOUD-287 send decommissioning requests all together to make it faster
Merge pull request #335 from sequenceiq/decommission

CLOUD-287 send decommissioning requests all together to make it faster
CLOUD-287 decommission hbase region server as well
Merge pull request #338 from sequenceiq/hbase

LGTM
CLOUD-288 faulty error message fixed
CLOUD-289 base64 encoded p12 files in db
Merge pull request #339 from sequenceiq/errormsg

CLOUD-288 faulty error message fixed
CLOUD-274 check ambari status
Merge pull request #340 from sequenceiq/ambari-update

CLOUD-274 check ambari status
CLOUD-289 do not return private key file + delete temp p12 files
Merge pull request #341 from sequenceiq/gcc-p12

LGTM
CLOUD-290 ambari client service introduced
CLOUD-290 stack does not peristed the ambari ip yet
CLOUD-290 do not decommission hosts with AMs
CLOUD-290 variables naming fix
Merge pull request #342 from sequenceiq/hostfilter

LGTM
CLOUD-290 NN and SNN filter
CLOUD-291 fixed resource saving between steps
Merge pull request #343 from sequenceiq/filter

LGTM
CLOUD-291 removed context update