Merge branch 'release/v17.09.0'

.gitignore

.gitlab-ci.yml

CMakeLists.txt

CPPLINT.cfg

cmake/ConanHelpers.cmake

cmake/ConfigureFiles.cmake

cmake/FindSDL2.cmake

cmake/Testing.cmake

cmake/VisualStudio2013.vcxproj.user.in

cmake/WarningLevels.cmake

cmake/cpplint.cmake

cmake/suppress_warnings.hpp.in

conanfile.py

demos/viewer/src/viewer.cpp

library/CMakeLists.txt

library/phx/clear_pass.cpp

library/phx/clear_pass.hpp

library/phx/component.hpp

library/phx/entity.hpp

library/phx/frame_graph.cpp