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  1.  `server` - IRC server, IE. irc.freenode.net
  2.  `port` - Normally 6667 (No SSL) or 9999 (SSL) (optional). These are the defaults based on whether the value of `ssl` checkbox.
  3.  `room` - Supports single or multiple rooms (comma separated).  Also supports room passwords (room_name::password).  Prefixing '#' to the room is optional.
  4.  `password` - Server password (optional)
  5.  `nick` - Nickname (optional)
  6.  `long_url` - If enabled, displays full compare/commit url's. If disabled uses git.io.
  7.  `message_without_join` - If enabled prevents joining and immediately leaving the channel.
  8. `no_colors` - Disables color support for messages
  9. `notice` - Enables notice support.  Make sure you configure channel to support notices ("/mode #yourchannelname -n" or "/msg chanserv set mlock -n")
  10. `branch_regexes` - Regular expressions for branch name matching (optional, comma separated). For example, only master => `^master$`, master & starts with bug => `master,^bug`.
  11. Configure your IRC channel to allow external messages (/mode #yourchannelname -n).

  For freenode, try the following:

      # server: irc.freenode.net
      # port: 6667
      # room: #yourroom
      # message_without_join: checked
      # long_url: checked
      # notice: checked
      # NOTE: Ensure you enable notice support (see above)