* Listen on port 3000 instead of port 80. Port 80 is prone to conflicts
with other webservers.
* Use the production version of the Danbooru Docker image. It's less
likely to have bugs than master.
* Fix the autoinstall script to work with `curl ... | sh`.
* Lower PUMA_WORKERS to 1 to reduce memory usage.
* Fix installing the wrong Docker package on Ubuntu.
* Fix the package install steps asking for confirmation.
* Fix missing sudo calls in a couple places.
Add a Docker Compose file that launches a minimal Danbooru instance in a
Docker container with a single command. This is suitable as a quick demo
or for personal use, not for public-facing sites.
To use it, just run `bin/danbooru`. This is a wrapper script that
installs Docker Compose then uses it to start Danbooru.
This will generate a lot of debug output and take several minutes while
it builds the Docker containers. Be patient. When it's done, you should
have an empty booru accessible at http://localhost.
