"Curve" (??) )
2 replaced ObjectHierarchy::calc() ( which resulted in certain objects
  being calced five times ( the locus in locustest.kig, most notably
  :( ) by an idea from KSeg.  What we do is now to just sort the
  objects we need to calc in a suitable way.  This is a bit more
  difficult than it sounds, and in the meanwhile, i think i've hit
  some sort of bug in my STL implementation (??), but it works now :)
3 indentation fixes

svn path=/trunk/kdeedu/kig/; revision=175592