fix(irc): Move selfMessage event to Client.send instead of Client._speak.

[jirwin]

Also includes a couple lint changes for consistency.

[Palid]

+1

[Dagrut]

+1 With this change, the selfMessage event would be sent after the message throttling (made by the flood protection), which is what I'm looking for :-) . Edit: Well, I ended up handling this myself for now