add dirichlet distribution to multivariate distributions
__call__ of dirichlet doesn't need an x vector
check parameters before random sample
comment dirichlet distribution
Add dirichlet distribution to docu
some minor bugfixes
dirichlet distribution tests
pep8
add dirichlet to release notes
minor. Typos and removed commented code
test on any not on all!
print correct value in error msg
empty line before ..math is needed by rst
""" to r"""
typo
use np.asarray() on inputs
Dirichlet always upper case in docu
capture not one or two dimensional inputs
don't add whitespace
add Johannes Kulick to THANKS.txt