Add relative path folder option! + Code Cleanup.

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4648 96b784f8-4ae3-dd11-aff7-0030488c597c
Improves for set folder path.

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4649 96b784f8-4ae3-dd11-aff7-0030488c597c
fixed 90 degree rotation of leaf uv-map and added leaf offset option

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4650 96b784f8-4ae3-dd11-aff7-0030488c597c