changelog
    
    
    - Tue, 20 Mar 2018 12:25:52 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Tue, 20 Mar 2018 12:25:52 +0200] rev 1307
 
    - fixed warning
 
    - Mon, 19 Mar 2018 12:44:27 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Mon, 19 Mar 2018 12:44:27 +0200] rev 1306
 
    - red/green view rework complete
 
    - Mon, 19 Mar 2018 12:24:59 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Mon, 19 Mar 2018 12:24:59 +0200] rev 1305
 
    - Bfc red/green view almost completely fixed
 
    - Mon, 19 Mar 2018 11:04:18 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Mon, 19 Mar 2018 11:04:18 +0200] rev 1304
 
    - added more comments
 
    - Mon, 19 Mar 2018 10:59:58 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Mon, 19 Mar 2018 10:59:58 +0200] rev 1303
 
    - reworked invert()
 
    - Mon, 19 Mar 2018 10:57:19 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Mon, 19 Mar 2018 10:57:19 +0200] rev 1302
 
    - added license headers
 
    - Mon, 19 Mar 2018 10:57:13 +0200
 
    - by Teemu Piippo <teemu@hecknology.net> [Mon, 19 Mar 2018 10:57:13 +0200] rev 1301
 
    - moved inverting code into a new file