Publish to crates.io

[cloudhead]

With the release of 0.3.0, it would be nice if this was published to crates.io, along with wgpu-native. I'm trying to pull this in as a dependency for another crate, but cargo doesn't accept git dependencies.

[kvark]

Note that gfx-rs is an implementation detail here. The fact that its dependency got updated to another breaking change means no consequences for wgpu-rs.

At the same time, we've been planning on a release for a while, and are approaching it now. See gfx-rs/wgpu#284 and gfx-rs/wgpu#285 , which might be the last bits we need before the release.

[cloudhead]

Oh I was referring to the version bump of wgpu to 0.3.0 - though I guess that was a coincidence. Good to see that we're close to a release though!