changelog
    
    
    - Sat, 03 Mar 2018 17:25:12 +0200
 
    - by Santeri Piippo [Sat, 03 Mar 2018 17:25:12 +0200] rev 1261
 
    - Removed LDObject::invert, inversion code moved to basic toolset
 
    - Sat, 03 Mar 2018 16:59:03 +0200
 
    - by Santeri Piippo [Sat, 03 Mar 2018 16:59:03 +0200] rev 1260
 
    - removed LDObject::swap
 
    - Sat, 03 Mar 2018 16:56:49 +0200
 
    - by Santeri Piippo [Sat, 03 Mar 2018 16:56:49 +0200] rev 1259
 
    - moved LDObject::next to the algorithm toolset