0.19 release schedule

[Ian Clatworthy]

John Arbash Meinel wrote:

> I never feel like I have enough time to land what I would like. So my
> preference is to just have time-based releases that don't try to wedge
> anything into a given release.  Instead, we just try to merge things as
> quickly as possible, and focus on queuing up the big changes to land
> right *after* a given release.

That's my preference as well.

Ian C.