fix some curve texture handling + modified some models (thickness e.g. of bulb)

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4714 96b784f8-4ae3-dd11-aff7-0030488c597c
quiet some debug outputs

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4715 96b784f8-4ae3-dd11-aff7-0030488c597c
added "set_scene_to_metric" operator

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4716 96b784f8-4ae3-dd11-aff7-0030488c597c
updated version date to today

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4719 96b784f8-4ae3-dd11-aff7-0030488c597c