Merge branch 'feature/vectorized-sumfact-kernel' into 'master'

.gitmodules

python/CMakeLists.txt

python/dune/perftool/__init__.py

python/dune/perftool/generation/__init__.py

python/dune/perftool/generation/cache.py

python/dune/perftool/generation/loopy.py

python/dune/perftool/loopy/buffer.py

python/dune/perftool/loopy/symbolic.py

python/dune/perftool/options.py

python/dune/perftool/pdelab/localoperator.py

python/dune/perftool/sumfact/amatrix.py

python/dune/perftool/sumfact/basis.py

python/dune/perftool/sumfact/sumfact.py

python/pytools

test/sumfact/mass/mass.mini

test/sumfact/mass/mass_3d.mini

test/sumfact/poisson/poisson_2d_order1.mini

test/sumfact/poisson/poisson_2d_order2.mini

test/sumfact/poisson/poisson_3d_order1.mini

test/sumfact/poisson/poisson_3d_order2.mini