changelog
    
    
    - Mon, 10 Apr 2023 12:40:49 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Mon, 10 Apr 2023 12:40:49 +0300] rev 369
 
    - isConvex renamed to quadrilateral_convexity, refactor, now returns an enum instead of bool
 
    - Sun, 09 Apr 2023 17:05:40 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Sun, 09 Apr 2023 17:05:40 +0300] rev 368
 
    - Simplify signature of openModelFromPath
 
    - Sun, 09 Apr 2023 16:30:33 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Sun, 09 Apr 2023 16:30:33 +0300] rev 367
 
    - Also connect up the "Delete" action
 
    - Sun, 09 Apr 2023 16:27:22 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Sun, 09 Apr 2023 16:27:22 +0300] rev 366
 
    - Also connect up "Select all"
 
    - Sun, 09 Apr 2023 16:23:05 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Sun, 09 Apr 2023 16:23:05 +0300] rev 365
 
    - Add undo, redo, cut, copy and paste actions to MainWindow which pass onto the editor widget
 
    - Sun, 09 Apr 2023 16:01:57 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Sun, 09 Apr 2023 16:01:57 +0300] rev 364
 
    - I forgot to add files again... this time it's modelsubwindow.h
 
    - Sun, 09 Apr 2023 16:01:38 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Sun, 09 Apr 2023 16:01:38 +0300] rev 363
 
    - Removed unused code