[CEV-2722] Fpp file format changed to be forward-compatible (22.1 -> 22.0 and older)
fpp file version updated to version 9 docu updated
[CEV-2619] Curves by plane: change defaults to 90 deg
[CEV-2720] Several Memory Leaks
[CEV-1546] Manually moving patches strange/not stable
Note: if after opening "Move patch" you drag the patch just a tiny bit by the central ball, movements by dragging the coordinate-system axis become more predictable/stable.