### Please describe the problem.
In "Configuring jabber account" custom domains through google apps don't connect properly.

### What steps will reproduce the problem?
Try to use a google account that uses a non-gmail domain, e.g. user@domain.com

### What version of git-annex are you using? On what operating system?
Newest, on Mac OS 10.9

### Please provide any additional information below.
The issue is because git-annex is trying to connect to @domain.com as the jabber server, but the server should be talk.google.com:5223.

[[!format sh """
# If you can, paste a complete transcript of the problem occurring here.
# If the problem is with the git-annex assistant, paste in .git/annex/daemon.log


# End of transcript or log.
"""]]

[[!tag moreinfo]]
