Add jupyterhub-traefik-proxy 1.0.0 (mk2)

[bollwyvl]

Checklist

• Title of this PR is meaningful: e.g. "Adding my_nifty_package", not "updated meta.yaml".
• License file is packaged (see here for an example).
• Source is from official source.
• Package does not vendor other packages. (If a package uses the source of another package, they should be separate packages or the licenses of all packages need to be packaged).
• If static libraries are linked in, the license of the static library is packaged.
• Package does not ship static libraries. If static libraries are needed, follow CFEP-18.
• Build number is 0.
• A tarball (url) rather than a repo (e.g. git_url) is used in your recipe (see here for more details).
• GitHub users listed in the maintainer section have posted a comment confirming they are willing to be listed there.
• When in trouble, please check our knowledge base documentation before pinging a team.

Notes:

• the key traefik dependency is unix-only, not worried about windows fails
• most hacks incorporated into Add localhost env var jupyterhub/traefik-proxy#208

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/jupyterhub-traefik-proxy) and found it was in an excellent condition.

[bollwyvl]

@conda-forge/help-python ready for review

[bollwyvl]

Ah, 1.0.1 was released with some of the packaging (but not test configuration) changes.... it's no big deal if this gets reviewed merged, but I do intend to take a look at updating this...

[bollwyvl]

@conda-forge/staged-recipes (re)ready for review