Merge branch 'master' into fix-temp-default-shape

.github/workflows/ci.yml

.gitlab-ci.yml

.test-conda-env-py3.yml

README.rst

azure-pipelines.yml

build-helpers/.gitignore

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

build-helpers/run-pyinstaller.sh

build-helpers/upload.sh

doc/index.rst

doc/ref_kernel.rst

doc/ref_transform.rst

doc/tutorial.rst

examples/fortran/matmul-driver.py

loopy/__init__.py

loopy/auto_test.py

loopy/check.py