R1:8f43c773b832

Remove nearly all remaining references to "Autoclose"

Summary:
Depends on D20464. Ref T13277. Broadly:

- Move all the "should publish X" and "why aren't we publishing X" stuff to a separate class (`PhabricatorRepositoryPublisher`).
- Rename things to be more consistent with modern terminology ("Publish", "Permanent Refs").

Test Plan:
This could use some trial-by-fire on `secure`, but:

- Grepped for all symbols.
- Viewed various commits.
- Reparsed commits.
- Here's a commit with an…