CLOUD-135 improve logging in progress
CLOUD-135 logging with factories
CLOUD-135 added more specific context to every log call
CLOUD-135 fixed tests
CLOUD-135 removed unused variable
CLOUD-135 fixed naming
CLOUD-135 fixed message
CLOUD-135 added ambari polling
Merge pull request #319 from sequenceiq/logging

Logging
CLOUD-270 provide access for periscope with client_credentials, rest call to obtain stack id from ambari address
CLOUD-270 add access to periscope client to security endpoints
CLOUD-270 remove unused user entity from controllers
CLOUD-270 extend stack json with user and account realted fields
CLOUD-270 check for scope instead of client for autoscaling