categorized_examples
example file change
examples showed in separate method
Move offset example into new directory structure.
Add missing DXF file for flat_body.scad (was example009.dxf).
Update to use new faces parameter.
Fix name for STL file.
Don't use deprecated file parameter.
Fix DXF file name.
Output the OpenSCAD version number to console window.
Change diff output to use unified diff format to make it easier to read.
Update test cases.
Merge branch 'master' into categorized_examples

Conflicts:
	src/MainWindow.h