Handle UnrealIRCd Raw 379 unhandled message

[vBm]

Using npm version 0.8.1. and we get this error. Same issue was present since the start on the original project.

ERROR: Unhandled message: { prefix: 'irc.example.net',
  server: 'irc.example.net',
  command: '379',
  rawCommand: '379',
  commandType: 'normal',
  args: [ 'Bot', 'Bot', 'is using modes +B' ] }

379 is defined here.

[Throne3d]

379 seems potentially ambiguous between Unreal and aircd – from this chart. I think aircd is not used very much, though, and they both seem to be replies, so I'll probably use the Unreal one for now.

[Throne3d]

I've pushed some commits to fix/unreal-unhandleds for each of these issues – #47, #48, #49, #50. Assuming the CI passes, I'll merge that into master, which should fix these issues. I don't think I'll create a new release for this, at least not yet, but if there are no further changes over the next month or two then I will try to remember to cut a release then.