Pylint updates + pycodestyle

Also test cases when the job doesn't exist
In tests that don't use the test client we don't have to deal with
the flask context of the client, and therefore can just use the
regular flask_login.login() method

Rename the method and endpoint to refer to low-level, like the
existing GET methods
Catch <0 offsets
If the same request is duplicated in the query, only perform the
request once

also fix embarrassing spelling mistake. valilidate?

Make navbar more compact by moving some items into dropdowns

There are no public servers which use the old format, and this
script will remain in git history, so can be recovered if needed

This file was created during the json->jsonb schema change
but was never used. Remove to to reduce confusion

Remove unused migration scripts and data files

Essentia examples used to include essentia statically, but now link to a .so, so we need to install it

Used in oauth login with musicbrainz, broken since
newhost setup. Also reported in AB-130 but not correctly
fixed the first time around

Use an https client which checks SSL certificates

Add crossdomain header for /api/v1/low-level endpoint (AB-295)