Greg v1.7.1b1

Test build of 1.7.1. Not for general use.

What it will contain when it ships:

Changed

• Greg arrives as a zip now. Every release carries a greg.zip and HACS
  downloads that rather than the source archive GitHub generates. What you
  install and how you install it are unchanged. The point is that GitHub
  counts release files and does not count source archives, which is the whole
  reason Greg has never had a download number beside his name in HACS while
  other integrations do.
• The number HACS shows is for the current release only and starts again from
  nothing every time he is updated, so it says how much traffic one version
  got rather than how many people have him. There is a running total on the
  README for the other question. That one only goes up.
• Both counts start from this release. Nothing before it was ever counted and
  nothing can go back and count it.

Internal

• The release workflow builds the zip and refuses to publish if its layout is
  wrong, and the ordinary checks build it on every push for the same reason. A
  zip one level too deep would install to the right place with everything
  inside it in the wrong one, which produces a perfectly green build and a Greg
  that does not load.
• .github/scripts/downloads.py prints the all-time total with a line per
  release, for when the badge is not enough.