A litle modification of the channel favorites that makes it join all selected channels in the same join-command sent to the server.
Instead of joining each channel with "join channel; join channel2" etc, join them with "join chan1,chan2,etc".
There maybe aren't any notable change when only joining a couple of channels with few users.
But if you try it with like 30 channels with alot of users in them, you will see the diffrence.
