Explicitly instruct CMake to look for Python 2.7
Fix pySceneObject::IsHuman
Fix some *nix compiler errors.
Grab the correct DX libs for our architecture
Merge pull request #343 from dpogue/linux-fix

Fix some *nix compiler errors.
Merge pull request #342 from Hoikas/ishuman

Fix pySceneObject::IsHuman
Merge pull request #340 from Mystler/evenmorecmake

Explicitly instruct CMake to look for Python 2.7
Merge pull request #344 from Hoikas/cmake

FindDirectX Improvements
Move all the DirectX-specific stuff into a folder.

This actually allows us to compile plPipeline on *nix (although linking
will fail).
Fix clang warnings in plCubicRenderTargetModifier.
plViewTransform is not in plPipeline.

Thanks @Deledrius.
Minor fixes.
Clean up source groups for plDXPipeline.
Actually use working backslashes.
Merge pull request #345 from dpogue/pipeline

Split DirectX stuff into a subdirectory of plPipeline
Merge remote-tracking branch 'upstream/master'
Merged DX folder changes from Dpouge and updated D3Dutils for the new structure