New Features:
* Updated Segmentation tab
    - Combining 2d and 3d segmentation is now possible.
    - New helper fuctions for groups added
    - Cross section of 3d segmentations (from both 3d segmentation and 2D 
groups) can be seen in the cross section windows.
* Lofted surface is now visable while creating a surface with groups.
* Radius based meshing on surfaces with multiple walls.
* Wall property calculation updates.
* Improved apple clang support.
* Source code update for public release
* Bug fixes in adaptors, meshing, segmentation, svpost and svpre.