update for upcoming MB & MT releases

[cscherrer]

No description provided.

[cscherrer]

The d.v in the tests is broken, because product_distribution seems to have gotten smarter. For example,

julia> d = Distributions.product_distribution([Distributions.Normal(), Distributions.Normal()])
DiagNormal(
dim: 2
μ: [0.0, 0.0]
Σ: [1.0 0.0; 0.0 1.0]
)

I don't know if there's an easy way to get marginals from this.

[oschulz]

What's the status with this?

[cscherrer]

I had a start on it, but it got confusing trying to coordinate the changes in MB with things needing to be factored out here in order to get MT back up to speed. So I set it aside and just focused on MT first.