- the Aperture Table in the Gerber Editor is no longer extended to show all apertures at once
- in Preferences: Excellon, Geometry and CNCJob tabs, updated the UI to the new design
- trying to separate the Preferences settings from App init and to make them dependent on the self.defaults dictionary
- updated the language strings from the source
- added the posibility to export the Geometry in different DXF formats (previously it was hard coded to the AutoCAD 2010): R12, R2000, R2004, R2007, R2010, R2013, R2018
- fixed the camlib.Geometry.bounds() method such that it is calculated correctly for Geometry objects created in the Geometry Editor