Comment out broken tests

These tests appear to generate spurious failures or else hang indefinitely.
WIP: Messy, but kinda works

Needs to be cleaned up, maybe adjust the map key since :bearer is kinda
dumb. Should probably call it :app_only or something.
WIP: New polymorphic make-oauth-creds

This is exactly what I first tried, so I'm pretty sure it's the right
way to go about things. Next up: tests.
WIP: add make-app-only-test-creds

Prelude to adding tests
WIP: clean up error msg

It will actually throw from the request if something goes wrong in an
obvious way. This should probably check the body output rather than the
status code.
WIP: Add tests for app-only auth
WIP: Add test for header->stringc
WIP: Add new barf testing macro

I h8 that this is a macro.