These are just used as examples, and prevent Oragono from starting
up if the host doesn't have an IPv6 stack (e.g. inside docker
containers).

See oragono/oragono-docker#5

Add docker info to README

(Here be dragons)

fix spurious bidi violations when casefolding the nickmask of an RTL nick

Mention that the Dockerfile etc are in a different repository

refactor [dk]lines

Even after the timer fired, we were retaining a pointer to it;
clean those up too along with the other cleanup tasks.

two service bug fixes

services refactor

fix #322

some more changes

see https://github.com/ircv3/ircv3-specifications/issues/293

during nick change, removeInternal(client) was being called even before checking
whether the new nick was in use or reserved. Reproduction steps:

1. Log in a client 'alice'
2. Log in a client 'bob'
3. bob issues /nick alice, which fails (correctly) with:
:oragono.test 433 bob alice :Nickname is already in use
4. alice issues /msg bob hi, which fails (incorrectly) with:
:oragono.test 401 alice bob :No such nick

(since it's only accessed from the client's own goroutine)

Automatically create the datastore on `oragono run` if it doesn't exist.
See also #302.

eight small changes

1. Remove leaveClientIdle (unused)
2. s/leaveClientActive/leaveClientIdle/
3. make ISON a leaveClientIdle command (some clients send it periodically
   if a /msg window is left open)

add validation for isupport tokens

According to jwheare, ISO 8601 doesn't specify the behavior one way
or the other, and the server-time spec is also ambiguous, but this
is safest.