changelog
    
    
    - 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