Fix ToLoopyExpressionMapper for subscripted variables

See merge request inducer/grudge!32

Caches for speedy bind

See merge request !30

Placate flake8 3.6

See merge request !28

Add Pytest/JUnit/Gitlab integration

See merge request !27

Preinstall pybind11 for pyopencl

See merge request !25

Use mpi4py.run in spawned MPI subprocessess

See merge request !24

This reverts merge request !23

Add PY_EXTRA_FLAGS="-m mpi4py.run" to help avoid stuck MPI-based CIs

See merge request inducer/grudge!23

Fix one aspect of 1D support

See merge request inducer/grudge!22

Fix env passing throug mpiexec

See merge request inducer/grudge!21

Mpi communication

See merge request !11

# Conflicts:
#   grudge/execution.py

Add Bessel function eval to grudge's symbolic language

See merge request inducer/grudge!20