changelog
    
    
    - Thu, 10 May 2018 15:48:39 +0300
 
    - by Teemu Piippo <teemu@hecknology.net> [Thu, 10 May 2018 15:48:39 +0300] rev 1387
 
    - added a doublespinbox variant that uses "." as the decimal point and omits trailing zeros
 
    - Thu, 10 May 2018 14:57:23 +0300
 
    - by Teemu Piippo <teemu@hecknology.net> [Thu, 10 May 2018 14:57:23 +0300] rev 1386
 
    - added scaling vector editing into the subfile editing dialog
 
    - Fri, 27 Apr 2018 16:27:14 +0300
 
    - by Teemu Piippo <teemu@hecknology.net> [Fri, 27 Apr 2018 16:27:14 +0300] rev 1385
 
    - added vertex rendering