changelog
    
    
    - Sat, 24 Mar 2018 13:28:03 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Sat, 24 Mar 2018 13:28:03 +0200] rev 1330
 
    - Used more Qt file info stuff
 
    - Sat, 24 Mar 2018 13:11:17 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Sat, 24 Mar 2018 13:11:17 +0200] rev 1329
 
    - rewrote LDDocument::shortenName using Qt stuff
 
    - Sat, 24 Mar 2018 13:03:02 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Sat, 24 Mar 2018 13:03:02 +0200] rev 1328
 
    - merged mathfunctions.cpp into algorithms/geometry.cpp
 
    - Sat, 24 Mar 2018 12:58:01 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Sat, 24 Mar 2018 12:58:01 +0200] rev 1327
 
    - added comment
 
    - Sat, 24 Mar 2018 12:54:28 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Sat, 24 Mar 2018 12:54:28 +0200] rev 1326
 
    - Happy new year 2018
 
    - Sat, 24 Mar 2018 12:51:24 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Sat, 24 Mar 2018 12:51:24 +0200] rev 1325
 
    - Use 4 points of precision for circle point coordinates