This covers the new multi-commit review request support, new

administration UI, read-only mode, integrations, extension improvements,

new APIs, bug fixes, and Python 3/Django 1.11 support.
This is pretty comprehensive, though there's still plenty of

behind-the-scenes changes that aren't covered (but which have been sent

by contributors). A special thank-you note has been added to the end.

Built the docs. Checked all links (only one is broken, and that's due to

currently missing Discord docs). Checked for build errors and spelling

errors.