Added Xcode project file for debugging aid on OS X
Added hidden Xcode schemes
Xcode fix: Run executable in correct working dir
#899 tagged failing test as a bug, added minimal test case
xcode ignores
C++11 compile fix
Bugfix: Added missing code for properly comparing booleans
disable unused scheme
GeometryEvaluator: Fix comment
GeometryEvaluator: Reindent
Initial attempt at parallel rendering
Add concurrency
Enable concurrency for RenderNode
Enable concurrency for CsgNodes
Fix rendernode
Fix csgnode
Enable concurrency for TransformNode