Docassemble

Fixed
- Error in 1.3.11 related to Upgrade button.

Fixed
- Error in 1.3.11 related to oauth logins.

Fixed
- Error in 1.3.11 related to ClickSend.

Changed
- API keys can now only be viewed when initially obtained.
- Code that runs when a module is loading now runs in a context where
the original `admin` user is logged in.
Fixed
- Bootstrap typo affecting alignment of dropdown menu.
- Issue with machine learning sometimes returning no results when results exist.

Changed
- In the Playground, pressing buttons is disabled during Ajax
requests.
- The Playground "Pull" process now uses SSH to clone repositories
when GitHub integration is enabled, unless a personal access token
is embedded in the URL.
Fixed
- CSS error resulting in certain validation errors being invisible on
administrative pages.

Added
- The `/api/playground_pull` endpoint for pulling a package into a
Playground.
- The `/api/config` PATCH endpoint for updating specific Configuration
directives.
- The `/api/restart` endpoint for triggering a server restart.
- The `/api/restart_status` endpoint for monitoring the status of a
server restart.
Changed
- The `/api/config` API endpoint now returns status code 200 on
success, not 204. The response contains a code that can be passed to
`/api/restart_status` to check on the status of the restart.
- The `/api/playground` POST and DELETE endpoints will now return
status code 200 instead of 204 if the server needs to restart. The
response contains a code that can be passed to `/api/restart_status`
to check on the status of the restart.
Fixed
- NGINX configuration syntax.
- Better error message if Celery is used inside of Celery.
- Gave the single Celery process a unique name.
- Adjust for situation where Ajax request fails without a response.
- Fixed JavaScript errors in some Playground pages.
- Fixed issue where GitHub SSH only worked during a Playground pull if
there was an active package.
- Miscellaneous undefined variables in rarely-run code.