Editor: configuration setup
Currently the cfg component is setup inside the open dialogue. This needs to be moved into the Editor class. Furthermore the encoding when reading files (Data class) should be set appropriately and command line arguments should be passed on to the cfg component.
(RM-568 from redmine: created on 2013-02-17 by Marc Zinnschlag, , closed on 2014-05-12 by Marc Zinnschlag)