Merge remote-tracking branch 'upstream/master'

.gitlab-ci.yml

bin/loopy

build-helpers/loopy.spec

build-helpers/make-linux-build-docker-inner-part-2.sh

build-helpers/make-linux-build-docker-inner.sh

build-helpers/make-linux-build-docker.sh

doc/index.rst

doc/misc.rst

examples/python/hello-loopy-lp.py

loopy/frontend/fortran/translator.py

loopy/kernel/__init__.py

loopy/target/__init__.py

loopy/target/c/__init__.py

loopy/target/c/codegen/expression.py

loopy/target/cuda.py

loopy/target/ispc.py

loopy/version.py

requirements.txt