Release 0.4 brings improved example programs

Release 0.4 brings improved example programs

As anounced: A new Version 0.4 is online at GitHub.
The main intention was to fix the Viewers coordinate system and to improve the example programs.
I also added Viewer configfiles for almost all examples. Launch the viewer with gpu_voxels_visualization -c configfile.xml

Best,
Andreas

V 0.4 (2015-03-09):
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- Fixed coordinate system in the Viewer
- Improved Viewer XML Config parser
- Added possibility to control visibility of SweptVolume subvolumes from a provider program
- Improved pointcloud file loader (new datatype, scaling)
- Improved example programs, added viwer configfile for them
- Added missing pointcloud filess for the examples
- Moved performance monitor to icl_core
- Some smaller fixes regarding RAD / DEG
- Removed compiler warnings