workspace host can't consist of umlaute
you are not allowed to use umlaute in the “host” field of the workspace configuration. Because umlaute are allowed in user specific connections in the .ssh/config they should also be allowed in vispa.
(from redmine: issue id 1296, created on 2013-04-04 by Christian.Glaser, closed on 2014-03-30)
- parent #1604