0.7.0 register

[JeffFessler]

@JuliaRegistrator register()

[JuliaRegistrator]

Registration pull request created: JuliaRegistries/General/2019

After the above pull request is merged, it is recommended that a tag is created on this repository for the registered package version.

This will be done automatically if Julia TagBot is installed, or can be done manually through the github interface, or via:

git tag -a v0.7.0 -m "<description of version>" e2149704cd9324db1f2d676ce38e2193c7ff2d24
git push origin v0.7.0