VTK_USE_CXX11_FEATURES shouldn't set c++ standard
If I compile vtk 7.1 from the tar file, VTKConfig.cmake is generated with the line set(CMAKE_CXX_STANDARD 11). However after using the find_package(VTK), as my project is already set to use the c++14 standard this new setting overrides the first stopping my project from compiling.