JAG 6.0.1: usabiltiy and bugfix release

JAG 6.0.1 fixes some bugs and improves some usability aspacts of the GUI. The following changes have been made:

- Bugfix: related enties had to be in the same service
- upgraded xmlbeans to 2.1.0.
- Menu entry added with list of recent projects.
- Remember the last selected output dir after restarting the gui.