use exact integer parsing for znc.in/playback

fix #1895

Update help of REGISTER and VERIFY commands

Include server start time in INFO output.

fix #1906

Having the 'samode' capability made all KICK commands privileged. This appears
to have been introduced unintentionally by 42316bc04f and I can't find
any discussion of a rationale. Since this goes against our policy that all
ircop (as opposed to channel founder) privileges must be invoked explicitly
(e.g. SAJOIN, SAMODE), remove this.

bump irc-go to v0.1.0

fix #1896

Don't allow any new uses of 0 as a nickname, since it conflicts with
the use of 0 as a placeholder for account name in WHOX.

show arbitrary IP in WHOX

fix #1901

AMODE +v should allow you to join a +i channel

Add FAQ about WebIRC and secure clients

fix #1898

NS SAREGISTER would fail due to a nil dereference of `client`;
add two safeguards against this.

distrib: add OpenRC init scripts

This extends #1650 to cover WHO as well as WHOIS

Signed-off-by: Sam James <sam@gentoo.org>

Written originally for Gentoo but should work
on Alpine and other OpenRC-consuming distros too.

Signed-off-by: Sam James <sam@gentoo.org>

add a warning about NS UNREGISTER unregistering channels

See discussion on #1891

update translations

* version and changelog updates for 2.9.0-rc1

* review fixes to changelog and documentation

add ip-check-script.exempt-sasl

This reverts commit 3b3c5b591f.

disable languages in default.yaml

fix the reopened #1844

* optionally protect against multiple starts with flock

Fixes #1823

* use traditional .lock extension

* move config key to top level