Update v20181119:

Added support for NVIDIA Adaptive Shading on NVIDIA RTX series GPUs. (Improves frame rate by dynamically adjusting the shading resolution in different areas of the screen, without affecting fidelity).
Ensured that, on multiple GPU systems, the discrete GPU is preferred over an integrated GPU.
Players can now choose to ignore/suppress warnings when the selected video settings exceed the amount of dedicated VRAM available on the GPU
Fixes for skinning issues on GTX 970