Merge branch 'master' into 'stable'

README.md

doc/source/developer.rst

doc/source/index.rst

doc/source/quickstart.rst

pyslurm/simparse/cfx.py

pyslurm/simparse/mpi.py

pyslurm/simparse/parent.py

pyslurm/simparse/starccm.py

pyslurm/slurm.py

scripts/sub_slurm.py

scripts/sub_star.py

tests/test_mpi.py