Slicer/Slicer — pull request #90 by lassoan (2013-12-19 14:42:17+00:00)
Title: BUG: Added missing node references update to scene->AddNode methods

Fixes http://na-mic.org/Mantis/view.php?id=3539.

Problem was that node references were not updated in the scene when node->SetScene(scene) was called for the node before scene->AddNode(node).

A few more code fixes are also included (no functional change, just making the code cleaner).