Updating `msprior` linux binary.
Updating `msprior` mac binary.
Adding more tests to `test_msbayes_priors.py`.
Uncommenting all tests in `test_msbayes_priors.py`
Updating linux `msprior` binaries (old and new).
Updating mac `msprior` binaries (old and new).
Merge branch 'master' of phylo.bio.ku.edu:PyMsBayes