Merge branch 'master' into star_formation_mpi_comms

configure.ac

doc/RTD/source/SubgridModels/EAGLE/EAGLE_entropy_floor.svg

doc/RTD/source/SubgridModels/EAGLE/index.rst

...TD/source/SubgridModels/EAGLE/plot_EAGLE_entropy_floor.py

doc/RTD/source/Task/index.rst

examples/EAGLE_ICs/README

examples/EAGLE_ICs/getEagleCoolingTable.sh

examples/EAGLE_ICs/getEagleYieldTable.sh

examples/HydroTests/SodShock_3D/sodShock.yml

examples/SubgridTests/StellarEvolution/getEagleYieldTable.sh

examples/SubgridTests/StellarEvolution/run.sh

src/Makefile.am

src/cell.c

src/cell.h

src/cooling/grackle/cooling.h

src/engine_maketasks.c

src/engine_marktasks.c

src/runner_doiact_black_holes.h