TravisCI: Turn down the Slack notifications
TravisCI: Turn down the Slack notifications

Problem

The Slack notification on TravisCI builds is fairly noisy.

Solution

Change to only notify on change of either status.

TBR=true

Differential Revision: https://phabricator.twitter.biz/D221661

luciferous/finagle,luciferous/finagle,twitter/finagle,twitter/finagle,luciferous/finagle,luciferous/finagle,luciferous/finagle,luciferous/finagle,twitter/finagle,twitter/finagle,twitter/finagle