#62 choose from multiple profiles

[Martin Pool]

I have a laptop that I sometimes carry between work and
home. When I'm at work, I can only connect to the
internal server; when I'm at home I can't reach it.

It would be nice if gabber allowed me to configure
multiple servers and choose to use either any one or
(better) any combination. I suspect it's kind of
contrary to the Jabber model of federated servers to
need multiple connections, but sometimes it would be
very practical.

Failing this, a quick command-line option to choose a
dotfile to use would be nice. I think xchat has this.