Revert "Add a linger_time configuration option on IRC servers"

This reverts commit 5d801ddcd025f68d2ec91edf0462091a32c779c1.

Revert "Cancel the IRC server linger timer when we try to-rejoin a channel on it"

This reverts commit 45f7396c8d30ed37570c4ecdaa886388f9beba3e.

Fix the tests to take into account the new “your are exempt bla” line

Make sure the channel is joined before trying to leave it

fix #3243

Merge branch 'mam_default_limit' into 'master'

Limit of 100 MAM messages, if no other limit has been set by the client

Closes #3256

See merge request !9

Shorten the name of the tags sent to codecov

Fix wrong JID computing when sending iq ping or version in fixed mode

fix #3259

Add the default MAM limit in the changelog

Add an e2e test for the mam default limit

We send 150 messages, then retrieve the archive. We should receive messages
from 50 to 149 only.

Remove the flood limit in our e2e charybdis configuration

Limit of 100 MAM messages, if no other limit has been set by the client

fix #3256

Take into account the include path found by cmake when looking for litesql lib

Avoid adding more that one “XMPP reconnection” timed event at the same time

Fix a semblance of infinite and busy loop, that could occur if biboumi’s
poller is woken up multiple times while the XMPP server is not reachable.

Avoid building test_suite when we make install

Handle the RSM "max" value in the MAM requests

fix #3255

docker: Run the process using “exec”, to be able to cleanly receive signals

Always chown biboumi /var/lib/biboumi when the docker container starts

This fixes permission problems when we bind a volume that is not owned by
the biboumi user.

Add an e2e test for the ad-hoc reload command

Change the dates of source files before each build, to avoid useless rebuild

Properly handle multiline topics

fix #3254