v1.17.1 - Authentication is good to go

As noted in #142, 1.17 is a big release and had some possibility to go wrong. It looks like the bugs are fixed, and this release keeps everything up-to-date.

Release notes:

• Fixes a bug where the Discord authentication server was sending the wrong domain, it now uses the headers of the request and checks against allowed domains before logging you in.

Closes #142