Some bug fixes brought over from develop branch.

• Allow Auth exceptions to bubble up to the surface (948518e1bc4752ab1f8fda78d8a615673d7ee6ef)
• Improve testing mock stability (20185f7bfa94ed0ddf4934c755cd795479eee148)
• Enabling blacklisting of expired-but-refreshable tokens (7b89b50da7b50d1e2608cfe060490d396f2f0d6a)
• Other small improvements and tweaks