[Bf-committers] Mantaflow landing and unit tests.

[Ray Molenkamp]

> One cruel thing i can think about is to force everyone to pay more
> attention is to prevent new build from being uploaded if regression tests
> are failing. We'll hear very quickly from users that there are no new
> builds on buildbot.
Cruel or not, It'll cost less resources to deal with
a single well defined test case, rather than triaging
and managing an unknown number of tickets that may
come from the same issue. I don't mind this idea *at all*

--Ray