Trivial comment change in an e2e test

Always send direct messages to the user’s bare JID

This has the following advantages:

- Works while all resources are offline (persistent channels)
- Helps with combating duplicate messages when sent to different
  resources, resources going offline, carbon-copying etc. etc.

As a side effect, this also makes the MUC PMs not be MUC PMs and
always be emitted from the server-wide JID of the sending user.

Fixes #3313.

Merge branch 'v9'

In CAP messages, handle the last arg as a list of capabilities

Instead of just one. This fixes the issue of the "trailing whitespace" since we
now split it on ' '

Fix #3442

Fix the parsing of IRC messages, especially with trailing spaces

Handle SASL failures by displaying a message and aborting the connection

e2e: do not fail to start if no irc database exist yet

Implement SASL plain authentication

e2e: Switch from coroutines to async, for python3.8

e2e: accept a regexp version of oragono, not just 2.0.0

Create oragono TLS certificate automatically before each e2e run

Remove raw_names_command e2e test

Modify oragono’s conf four our tests

Add the default oragono conf

Update the tests to work with oragono

Start oragono instead of charybdis

e2e: Switch from coroutines to async, for python3.8

Demonstrate bug #3429

Merge remote-tracking branch 'linkmauve/die-gc1.0-die'

Remove the part of the force-join test that checks the nick changed

Because we actually don’t change the nick, we ignore it, just like in the
case of a normal join (of an other resource, or an other channel on the same
server).