* add unit info to scale value in ripple stitch
* fix apply threadlist with empty description
* fix satin type ripple with unequal nodes
* fix legacy auto_fill conversion
* inform about too small meander shapes
* fix lettering scale
* adapt to updated inkex: transform operator, selections
* fix#1597
* no traceback error message on broken satin columns
* highlight troubleshoot "steps to solve" through additional headline
* set a minimum value for running stitch repeats
* rename "import" thread list to "apply" thread list