changelog
    
    
    - Thu, 11 Jan 2018 22:21:50 +0200
 
    - by Santeri Piippo [Thu, 11 Jan 2018 22:21:50 +0200] rev 1254
 
    - things
 
    - Thu, 11 Jan 2018 16:46:22 +0200
 
    - by Santeri Piippo [Thu, 11 Jan 2018 16:46:22 +0200] rev 1253
 
    - add operators to LDDocument
 
    - Thu, 01 Mar 2018 11:59:54 +0200
 
    - by Santeri Piippo [Thu, 01 Mar 2018 11:59:54 +0200] rev 1252
 
    - refactor
 
    - Thu, 22 Feb 2018 11:41:58 +0200
 
    - by Santeri Piippo [Thu, 22 Feb 2018 11:41:58 +0200] rev 1251
 
    - Converted magic wand mode and other selection stuff to mvc
 
    - Thu, 15 Feb 2018 14:59:04 +0200
 
    - by Santeri Piippo [Thu, 15 Feb 2018 14:59:04 +0200] rev 1250
 
    - more work on mvc
 
    - Thu, 15 Feb 2018 14:40:59 +0200
 
    - by Santeri Piippo [Thu, 15 Feb 2018 14:40:59 +0200] rev 1249
 
    - convert MainWindow::deleteSelection to mvc
 
    - Thu, 15 Feb 2018 12:19:10 +0200
 
    - by Santeri Piippo [Thu, 15 Feb 2018 12:19:10 +0200] rev 1248
 
    - made lighting more subtle
 
    - Thu, 15 Feb 2018 12:18:57 +0200
 
    - by Santeri Piippo [Thu, 15 Feb 2018 12:18:57 +0200] rev 1247
 
    - converted highlighting to mvc
 
    - Thu, 15 Feb 2018 11:34:04 +0200
 
    - by Santeri Piippo [Thu, 15 Feb 2018 11:34:04 +0200] rev 1246
 
    - used mvc selection models
 
    - Thu, 15 Feb 2018 10:24:39 +0200
 
    - by Santeri Piippo [Thu, 15 Feb 2018 10:24:39 +0200] rev 1245
 
    - more work on mvc
 
    - Wed, 14 Feb 2018 15:17:30 +0200
 
    - by Santeri Piippo [Wed, 14 Feb 2018 15:17:30 +0200] rev 1244
 
    - begin model rework
 
    - Tue, 13 Feb 2018 15:43:55 +0200
 
    - by Santeri Piippo [Tue, 13 Feb 2018 15:43:55 +0200] rev 1243
 
    - removed unneeded stuff
 
    - Tue, 13 Feb 2018 14:56:08 +0200
 
    - by Santeri Piippo [Tue, 13 Feb 2018 14:56:08 +0200] rev 1242
 
    - Removed LDConditionalEdge::becomeEdgeLine
 
    - Tue, 13 Feb 2018 14:22:10 +0200
 
    - by Santeri Piippo [Tue, 13 Feb 2018 14:22:10 +0200] rev 1241
 
    - hook up dataChanged