Log Message:
Update matterircd to 0.18.4.

Matterircd v0.18.4

Bugfix

  - general: fix cli args not override configuration file #205
  - mattermost: support multi DM-groups correctly #209
  - mattermost: add correct support for personal tokens #208
    Use /msg mattermost login <server> <team> <login> \ 
token=<yourtoken>
  - mattermost: Fix JoinInclude / JoinExclude logic when joining/parting
    channels. Also support #team/channel
  - mattermost: Fix issue with empty channelname
  - mattermost: Fix re-login on session expiry

Matterircd v0.18.3

Bugfix

  - slack: api changed, show uploaded files again

Because of changes in slack API and the forced use of pagination, big channels
with lots of users can take a while to load.

Matterircd v0.18.2

Bugfix

  - slack: fix panic on websocket bug #189, #196

Matterircd v0.18.1

New features

  - mattermost: support mattermost 5.x

Matterircd v0.18.0

New features

  - general: Add debugmode true/false message in banner
  - irc: Add PrefixMainTeam setting. Also set the main team name as prefix in
    the irc-channel. See matterircd.toml.example
  - slack: Add support for login for slack (as addition to login )

Bugfix

  - mattermost: update channels when adding/removing users to new channel.
    Alsso join channel when we are added. Closes #178
  - irc: fix NAMES reply to send entire member list
  - irc: Use service for on-join topic changes (instead of your own username)
  - irc: Handle \r, ACTION and colour sanitization everywhere
  - irc: Fix concurrent map read/write. Closes #188
  - slack: Make sure to return for not implemented functions in slack. Closes #
    186
  - slack: Replace spaces to underscore in botnames. Closes #184

Matterircd v0.17.3

Bugfix

  - slack: Fix issues with bots with spaces in the name
  - mattermost: Actually join/remove users to channel when they join, not when
    they say something #113
  - mattermost: Join/remove users when they're added by someone else. Use a
    system message to show this #175

Matterircd v0.17.2

Bugfix

  - mattermost: Fix message looping issue

Matterircd v0.17.1

New features

  - general: enable login via irc PASS command during handshake instead of
    PRIVMSG

Bugfix

  - mattermost: Update GetFileLinks to API_V4
  - slack/mattermost: Fix issue with matterircd users not being able to chat to
    eachother
  - slack: Do not join channels for single direct messages (slack)
  - slack: Split fallback messages on newline (slack)

Matterircd v0.17.0

New features

  - general: mattermost configuration settings need to be migrated to
    [mattermost] settings. See matterircd.toml.example
  - slack: Add BlackListUser config setting. Blacklist users from connecting to
    slack. See matterircd.toml.example
  - slack: Add JoinMpImOnTalk config setting. Only join MultiPerson IM when
    someone talks. See mattericd.toml.example
  - slack: Add Restrict config setting. Only allowed to connect to specified
    slack teams. See matterircd.toml.example
  - slack: Add UseDisplayName config setting. If displayname is set, the
    message will be prepended with <displayname>. See matterircd.toml.example
  - slack: also show messages from bots
  - slack: reconnect on disconnects

Bugfix

  - &users join speedup on teams with massive amount of users (tested on 26k
    users)
  - Only allow 1 login/logout in progress
  - slack: Fix on-join race condition
  - slack: Always add yourself to your channels (fixes problem with > 500 users
    channels)
  - slack: remove carriage returns from topic
  - slack: Autojoin new channel/group when invited
  - slack: Join MpIm channel if we haven't joined it yet