mvnormal test runs
worked out bugs in mv test
worked out bugs in mv test
improve mvnormal test
fixed tests
split up tests
add wishart test
new tests for some distributions
improve tests
Install git version of Theano

The current release of Theano on PyPI only supports python 2. This
change install from the git master branch instead (for both python 2 and
python 3).

Using '<=0.6.1dev' as the required version is a hack to get pip to
install the git version of Theano. If set to '==0.6.1dev' pip will
download the git version but then throw an error because the git version
is still 0.6.0rc3. If set to '==0.6.0rc3', pip will give preference to
the pypi version.

requirements.txt, which is no longer read into setup.py, has been
removed.

Fixes #388
Merge pull request #389 from kyleam/theano-py3-fix

Install git version of Theano for python 3
fixed up tests
better tests for mvnormal, fix bug in Dirichlet
add tests and fix bugs in multinomial
fix python 3 issue
remove debug line
Merge pull request #390 from pymc-devs/scipy_dist_tests

Add rest of multivariate distribution tests
Cleaned up Gelman-Rubin; allowed mutliple traces to be plotted on the same traceplot axes without combining
Docstring update for traceplot
Cleaned up Gelman-Rubin; allowed mutliple traces to be plotted on the same traceplot axes without combining