Ciab atstccfg

[ocket8888]

What does this PR (Pull Request) do?

• This PR is not related to any Issue (I think)

This PR depends on #2776 .

Adds atstccfg to CDN-in-a-Box, allowing for a better representation of a true ATC system, and eliminating the dependency on my personal PyPI hosting of an old version of the TO Python client.

Also fixes the atstccfg docs, since the current behavior does not match what is documented.

Which Traffic Control components are affected by this PR?

• CDN in a Box
• Documentation
• Traffic Ops ORT (Python version and one or two minor changes to ATSTCCFG)

What is the best way to verify this PR?

The old test directory for ORT.py had a single test in it for setting API versions on configuration file objects returned by the old 1.x "meta config" route. Since that's now handled by ATSTCCFG, it's been removed. Instead, there's an executable doctest-runner.py file at the top of the ORT.py package that runs the doctests which already existed to some degree. In fact, they helped me find some bugs when I was building this. So just run that file to check for errors in the examples in docstrings.

But to be really sure, you'll need to start up CDN-in-a-Box and make sure that the BADASS run doesn't fail (which means ORT.py performed every operation it needs to perform and did it successfully). If it does fail, you'll see "Failed" echoed in the edge/mid cache servers' logs. The containers don't crash though, so that the problem can be debugged - so be careful not to assume that. If everything goes well, the "clocks" in TP should be cleared for edge and mid, and both should be marked available by TM.

If this is a bug fix, what versions of Traffic Control are affected?

This technically includes a docs bug fix, which is present in:

• 4.0
• 4.1 (RC0)
• master

The following criteria are ALL met by this PR

• This PR includes tests
• This PR includes documentation
• An update to CHANGELOG.md is not necessary
• This PR includes any and all required license headers
• This PR does not include a database migration
• This PR DOES NOT FIX A SERIOUS SECURITY VULNERABILITY

[zrhoffman]

In

[zrhoffman]

There is a merge conflict in traffic_ops_ort/atstccfg/toreqnew/toreqnew.go from #2776 being merged

[zrhoffman]

HTTP and HTTPS delivery services return successful response codes, CDN-in-a-Box readiness container exits successfully.