replaced in mpi_printf an instance of the non-existing macro USE_PINNING_OVERRIDE_MODE to IMPOSE_PINNING_OVERRIDE_MODE (which is the one currently defined in Template-Config.sh) to avoid macro check error during compilation

Bugfix in OUTPUT_XDMF option: xdmf file needs to contain relative path from itself to hdf5 file, not from executable directory.

Master

See merge request vrs/arepo!1

separated allvars.h and proto.h includes from rest of local includes to ensure it does not get sorted by clang-format

Fixed SUBFIND_EXTENDED_PROPERTIES bug; resolves issue #1; added PLOT variable in test to specify if check scripts should create plots or not

Updated documentation according to latest Config-option changes and fixed some typos.
Minor changes in examples/cosmo_box_gravity_only_3d/check.py and examples/cosmo_zoom_gravity_only_3d/check.py
Fixed runParent option in examples/cosmo_zoom_gravity_only_3d/create.py.