we don't know what compiler we are dealing with.  If the test compile works
then we assume we have C++11.

really supports the version of CUDA we found.

a few things.

details.

--HG--
rename : dlib/dnn/cublas_api.cpp => dlib/dnn/cublas_dlibapi.cpp
rename : dlib/dnn/cublas_api.h => dlib/dnn/cublas_dlibapi.h
rename : dlib/dnn/cuda.cu => dlib/dnn/cuda_dlib.cu
rename : dlib/dnn/cuda.h => dlib/dnn/cuda_dlib.h
rename : dlib/dnn/cudnn_api.cpp => dlib/dnn/cudnn_dlibapi.cpp
rename : dlib/dnn/cudnn_api.h => dlib/dnn/cudnn_dlibapi.h

--HG--
rename : dlib/dnn/cublas.h => dlib/dnn/cublas_api.h
rename : dlib/dnn/cudnn.h => dlib/dnn/cudnn_api.h

console_progress_indicator.

macro since otherwise they aren't used until cmake is run a second time.  Also
told nvcc to use C++11 and newer card architectures.

expressions in them to cmake.

C++11 isn't available.