Ignored only the rules about continuing / hanging indentation.
Also, added __init__.py to tests so that pylint discovers them. (I don't
buy pytest's BS about installing your package.)
For quite some time, I hated Falcon's class maps approach that caused
more chaos than good for Szurubooru. I've taken a look at the other
frameworks (hug, flask, etc) again, but they all looked too
bloated/over-engineered. I decided to just talk to WSGI myself.
Regex-based routing may not be the fastest in the world, but I'm fine
with response time of 10 ms for cached /posts.
