Improve the ServerKickEvent to fire when a server crashes or shuts do…

[fuzzybot]

…wn too fast, and include the Cause

[fuzzybot]

SpigotMC/BungeeCord#1846

[Techcable]

Would this break backwards compatibility somehow?

[fuzzybot]

This will not break any plugins listening to ServerKickEvent as this only adds a getCause() function, and is just firing it in a couple more cases instead of kicking the user entirely from the proxy (which a plugin would not have seen before).

This will not break any plugins listening to ServerDisconnectEvent as the event will still be fired the same way and in the same instances as before.

[Techcable]

Merged manually

[nathan818fr]

I just want to point out that this is the pull request that I sent to BungeeCord (SpigotMC/BungeeCord#1851).
This is a few lines of code and I don't care, but quoting my username would have been the minimum @fuzzybot :/

[jamierocks]

I would like to apologies on behalf of the Waterfall team. I'll rewrite the patch to have you as the author.

[jamierocks]

d2d4426

[fuzzybot]

ah, woops. forgot to change the author header.