This is the first commit of ACRASH to the repository. This version is for the infinite speed of light case. Documentation does not yet exist, but if interest of the community is given, I will write it.
It has been tested in a cosmological context but should be applicable to other fields as well. Currently ACRASH only supports hydrogen gas.
This implementation was part of a master thesis, which can be found under: http://textfeld.ac.at/pdf/991.pdf