add pubrate to agent instances and add alerts to platform agent instance
Merge branch 'master' of github.com:ooici/coi-services into platform_alerts
 change column name to publish_rate
Merge branch 'master' of github.com:ooici/coi-services into platform_alerts
update the tested_doc
Merge pull request #1013 from MauriceManning/platform_alerts

Platform alerts