changelog
    
    
    - Sat, 24 Mar 2018 12:06:22 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Sat, 24 Mar 2018 12:06:22 +0200] rev 1320
 
    - Moved includes, added squared() function
 
    - Sat, 24 Mar 2018 11:57:24 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Sat, 24 Mar 2018 11:57:24 +0200] rev 1319
 
    - reorganized headers
 
    - Sat, 24 Mar 2018 11:05:40 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Sat, 24 Mar 2018 11:05:40 +0200] rev 1318
 
    - removed unnecessary files and includes