GitLab

makes the always applicable modules to show up from the beginning.

(and similar  for coronal and sagittal). Corrected name of data set browser:
it really is the "Control Panel"

[CHANGE] - disconnect combiner now works

Added several new config settings to customize the gui

nice or guaranteed to work yet.

[FIX] crash when reopening config editor in linux, although i commited it before it was lost somewhere

- added some new submenus to the file menu for saving project files
- strucutred the file menu
- changed some shortcut keys as they collided with OpenSceneGraph's keys (like "S" for osg statistics)

also if no walnut.cfg is present the program won't hang any longer