All GitLab Inc. team members should use the canary deployment of GitLab.com

1. We're spending more time on regressions gitlab-com/organization#105 (comment 34422811)
2. "The frustrating thing is that a lot of them are noticed by us within minutes of using a new version deployed to .com, which just means that development and staging, and dev aren't seeing a lot of real-world use" https://gitlab.slack.com/messages/C0NFPSFA8/convo/C0NFPSFA8-1499424435.165449/?thread_ts=1499424435.165449
3. We now have a Canary deployment on Production
4. The solution is to have our development team work on canary
5. This is a normal process, Facebook also uses the new version internally before releasing externally
6. We way we identify who should see the canary deploy should preferably be by assigning certain group (gitlab-com or gitlab-org) similar to the group we display the performance bar https://gitlab.com/gitlab-org/gitlab-ce/issues/29010 to.

/cc @rspeicher @markpundsack @stanhu @ernstvn @pcarranza