This makes it easy to store UNIX sockets with correct permissions. Those
would be located in /run/synapse which is the directory used in many
examples in Synapse configuration manual. Additionally, the directory
and sockets are deleted when Synapse is shut down.

* Remove unused Vagrant scripts

* Change package Architecture to any

* Preinstall the wheel package when building venvs.

Addresses the following warnings during Debian builds:

    Using legacy 'setup.py install' for jaeger-client, since package 'wheel' is not installed.
    Using legacy 'setup.py install' for matrix-synapse-ldap3, since package 'wheel' is not installed.
    Using legacy 'setup.py install' for opentracing, since package 'wheel' is not installed.
    Using legacy 'setup.py install' for psycopg2, since package 'wheel' is not installed.
    Using legacy 'setup.py install' for systemd-python, since package 'wheel' is not installed.
    Using legacy 'setup.py install' for pympler, since package 'wheel' is not installed.
    Using legacy 'setup.py install' for threadloop, since package 'wheel' is not installed.
    Using legacy 'setup.py install' for thrift, since package 'wheel' is not installed.

* Allow /etc/default/matrix-synapse to be missing

Per the systemd.exec manpage, prefixing an EnvironmentFile with "-":

> indicates that if the file does not exist, it will not be read and no
> error or warning message is logged.

Signed-off-by: Dan Callahan <danc@element.io>

It should be possible to reload `synapse.target` to have the reload propagate
to all the synapse units.

Simplify and update this documentation, and make it part of the core dist.

This setup is a way to manage workers with systemd. It does however not
require workers. You can use this setup without workers. You just have
to make sure that the homeserver is forking and writes its PID file
to the location the service is looking in.

The currently distributed setup in the debian package does not work in
conjunction with workers.

* Adds changelog

* Lets systemd handle the forking

Sets all services to `type=simple` and disables daemonizing on the
synapse side.

* Formats readme to 80 columns per line

* Allows for full restart of all workers

* Changes README to reflect the new setup

* Adds dot to end of changelog file

* Removes surplus word

Co-Authored-By: targodan <targodan@users.noreply.github.com>

* Adds missing word

Co-Authored-By: targodan <targodan@users.noreply.github.com>

* Fixes linebreak

Co-Authored-By: targodan <targodan@users.noreply.github.com>

* Fixes unit type

* implement `reload` by sending the HUP signal

According to the 0.99 release info* synapse now uses the HUP signal to reload certificates:

> Synapse will now reload TLS certificates from disk upon SIGHUP. (#4495, #4524)

So the matrix-synapse.service unit file should include a reload directive.

Signed-off-by: Дамјан Георгиевски <gdamjan@gmail.com>