Updates complement.sh to read the ref from an environment
variable (defaulting to master) when downloading a complement
bundle for testing.

- Use sytest:bionic. Sytest:latest is two years old (do we want
  CI to push out latest at all?) and comes with Python 3.5, which we
  explictly no longer support. The script now runs under PostgreSQL 10
  as a result.
- Advertise script in the docs
- Move pg testing script to scripts-dev directory
- Write to host as the script's exector, not root

A few changes to make it speedier to re-run the tests:

- Create blank DB in the container, not the script, so we don't have to
  `initdb` each time
- Use a named volume to persist the tox environment, so we don't have to
  fetch and install a bunch of packages from PyPI each time

Co-authored-by: reivilibre <olivier@librepush.net>

In #75, bytecode was disabled (from a bit of FUD back in `python<2.4` days, according to dev chat), I think it's safe enough to enable it again.

Added in `__pycache__/` and `.pyc`/`.pyd` to `.gitignore`, to extra-insure compiled files don't get committed.

`Signed-off-by: Jonathan de Jong <jonathan@automatia.nl&gt;`>

Ex.

 - homeserver.log.2020-12-29
 - homeserver.log.2020-12-31

Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>

* type checking fixes

* changelog

* Add some stuff back to the .gitignore

Signed-off-by: Aaron Raimist <aaron@raim.ist>

* Add changelog

Signed-off-by: Aaron Raimist <aaron@raim.ist>

* Reorder and remove old items from .gitignore

Signed-off-by: Aaron Raimist <aaron@raim.ist>

I just got bitten by a file being caught by the .gitignore, which shouldn't
have been, and am now pissed off with the .gitignore. I have basically declared
bankruptcy on it and started again.

Some streams will occaisonally advance their positions without actually
having any new rows to send over federation. Currently this means that
the token will not advance on the workers, leading to them repeatedly
sending a slightly out of date token. This in turns requires the master
to hit the DB to check if there are any new rows, rather than hitting
the no op logic where we check if the given token matches the current
token.

This commit changes the API to always return an entry if the position
for a stream has changed, allowing workers to advance their tokens
correctly.

Signed-off-by: Stanislav Nikitin <pztrn@pztrn.name>

Added boilerplate for running end-to-end tests.\nThis is done using Protractor, which looks for a .gitignored file environment-protractor.js which contains the selenium endpoint url.