missing two gaia models
merge from darkside
created first mpi4py controller/spawned processes
Merge pull request #7 from PascalSteger/hs-dev

update of master after gravlite => gravimage renaming
Merge pull request #8 from PascalSteger/hs-dev

syntax error corrected
Code before pull request merger
Merged following PS update and pull request
New commit to test pushing
Merge branch 'hs-dev' of https://github.com/PascalSteger/darcoda into hs-dev