Disable plugins in reverse order
Add ServerInfo method to send plugin message only if server is online
Add forward parameter to only forward to online servers [Adds #1120]
Change a few aspects from last PR
Add KickPlayer subchannel

Can be used to kick a player who is on a different server
Fix javadoc
Shuffle Jansi/Jline versions
Merge remote-tracking branch 'upstream/master'

Conflicts:
	api/src/main/java/net/md_5/bungee/api/config/ServerInfo.java
	proxy/src/main/java/net/md_5/bungee/BungeeServerInfo.java