fixed formatting issue in catalog add/edit popup
Delegate the purging of 6 month+ old metrics to the purger.

Fixes timeouts during server startup.

The existing purging works in rails console using an old migrated database:

VmdbMetric.count => 4696666
require 'workers/schedule_worker'
ScheduleWorker::Jobs.new.metric_purge_all_timer
simulate_queue_worker
VmdbMetric.count => 0

Fixes #1029
Remove duplicate connection logic when verifying default credentials
Merge pull request #1050 from jrafanie/let_purger_handle_purging_metrics

Delegate the purging of 6 month+ old metrics to the purger.
Merge pull request #1052 from brandondunne/fix_ems_redhat_credential_validation

Remove duplicate connection logic when verifying default credentials
Merge pull request #1036 from epwinchell/automate_tree_div_styling

fixed formatting issue in catalog add/edit popup
Add the ability to override the service request message.

https://bugzilla.redhat.com/show_bug.cgi?id=1161253

Allow automate method to override the default request status message
displayed as "last message".
Added automate service model user_message helper methods.
Changed service_template_provision_task after_ae_delivery method for
reload and user_message override.
Added tests.