Release 0.7 (round 2)

[darsnack]

I rebased #140 on #132 by accident, so #132 is already merged. No problem, it was ready. But this PR is to try and fix some of the memory pressure issues in the tests. Also an opportunity to suggest changes that should have been in #132.

[theabhirath]

Docs CI still seems to be erroring out for some reason 😬 Also, this error in the CI is one I've encountered occasionally locally as well (particularly when I update Flux and load it for the first time post precompilation). Not sure what the underlying package is, though.

[ToucheSir]

Unsure if the warnings have anything to do with the fatal error, but the first is JuliaMath/BFloat16s.jl#37. The second I haven't seen before.

[theabhirath]

The second as in the rpad one? That's just because Flux 0.12.9 doesn't have MLUtils yet, so the rpad definition from Flux and the one from MLUtils (because Metalhead has MLUtils as a dep) are conflicting - should be solved when Flux 0.13 lands. The BFloat16s has never caused an error before though, it's only ever a warning - so I don't think that's the one causing CI failure

[darsnack]

The CI failure might be completely unrelated and due to Publish.jl.

It's cause our quickstart uses a larger batch size than our CI can handle: https://github.com/FluxML/Metalhead.jl/blob/master/docs/tutorials/quickstart.md

[darsnack]

Okay I think the release looks ready. @ToucheSir anything else? @theabhirath I replaced uses of Diagonal with the new and improved Scale. Are there any replacements possible with Flux 0.13 that I missed?

[ToucheSir]

Nope, I think this is good to go.

[theabhirath]

Seems perfect!