merge

examples/example_utils.py

examples/particles_above_salt/particles_above_salt_bc_3d.py

examples/taylor_green/taylor_green.py

hysop/__init__.py.in

hysop/backend/device/kernel_autotuner.py

hysop/backend/device/opencl/__init__.py

hysop/backend/device/opencl/opencl_elementwise.py

hysop/backend/device/opencl/opencl_kernel_autotuner.py

hysop/numerics/fft/gpyfft_fft.py

hysop/numerics/fft/opencl_fft.py

hysop/numerics/tests/bench_fft.py

hysop/operator/base/spectral_operator.py

hysop/parameters/buffer_parameter.py

hysop/simulation.py

hysop/tools/io_utils.py