Retires Advance (closes #3900). (#3901)
Retires Advance (closes #3900). (#3901)

* Retires Advance (closes #3900).

* Real date, sqaush this for merge.

mozilla/idea-town-server,mozilla/idea-town-server,flodolo/testpilot,mozilla/idea-town,mozilla/idea-town-server,mozilla/idea-town,mozilla/idea-town,mozilla/idea-town,mozilla/idea-town-server,flodolo/testpilot,flodolo/testpilot,flodolo/testpilot