fix(echo): Add Slack botName to echo configs (#1637)
fix(echo): Add Slack botName to echo configs (#1637)

Echo requires the botName field in order to enable Slack notifications
from Spinnaker configurations. This is not made clear in the
documentation.
ewiseblatt/spinnaker,skim1420/spinnaker,duftler/spinnaker,duftler/spinnaker,spinnaker/spinnaker,skim1420/spinnaker,jtk54/spinnaker,duftler/spinnaker,jtk54/spinnaker,ewiseblatt/spinnaker,skim1420/spinnaker,spinnaker/spinnaker,jtk54/spinnaker,spinnaker/spinnaker,duftler/spinnaker,skim1420/spinnaker,ewiseblatt/spinnaker,ewiseblatt/spinnaker,spinnaker/spinnaker