update for missing nodes missing nodes (BsdfVelvet / Reroute) thanks travisdk

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4581 96b784f8-4ae3-dd11-aff7-0030488c597c
further fix for bundled osl by meta-androcto

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4582 96b784f8-4ae3-dd11-aff7-0030488c597c
[TextureAtlas] format the script according to pep8. Thanks to autopep8. :)

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4583 96b784f8-4ae3-dd11-aff7-0030488c597c
[TextureAtlas] refactoring.

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4584 96b784f8-4ae3-dd11-aff7-0030488c597c
[TextureAtlas] refactoring and some fixes.

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4585 96b784f8-4ae3-dd11-aff7-0030488c597c
[TextureAtlas] fix by IdeasMan42.

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4586 96b784f8-4ae3-dd11-aff7-0030488c597c
[TextureAtlas] fix for pep8.

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4587 96b784f8-4ae3-dd11-aff7-0030488c597c