Switched default behavior: use internal qhull version, since there are issues with newer versions that might be installed on the system

Added some sanity checks.

license: lgpl 2.1

git-svn-id: http://svn.code.sf.net/p/simox/code/trunk@868 042f3d55-54a8-47e9-b7fb-15903f145c44

added support to move the Robots rood node into another node, still have to work on the visualisation

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Renamed SceneViewer to SimoxSceneViewer
Version 2.3.9


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Minor float/double fixes.

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git-svn-id: http://svn.code.sf.net/p/simox/code/trunk@852 042f3d55-54a8-47e9-b7fb-15903f145c44

recommit: fixed problem with relative paths in URDFs for STLs, fixed orientation problem when exporting to WRL


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Fixed collision bug in SimDynamics: primitive shapes were not initialized correctly (no dynamic AABB within compound shapes)
Added robot support to collision checker

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