Fixed includes for cuda 4.2
Added some CMake commands to copy dlls into the executable dir for Visual Studio
Added CMake code to generate the correct flags for CUDA compute capability
Updates to simplify merge with master.
Merge remote-tracking branch 'dillonl/master' into AllOptixDev

Conflicts:
	src/ElVis/Core/CMakeLists.txt
	src/cuda_compute_capability.c