Version 4.06

Update Notes:

* upon level up, the server will only notify the client leveling up the
new EXP needed instead of the whole channel.

* When using /afk, or when AFK, the idle timer should not override AFK
to idle, and using /afk when AFK should not bring you back from AFK to
go AFK once again.

* The client will only go out of AFK or idle for specific actions such
as speaking or other output to the channel. Tell is omitted.