Add WIP GLM IPyNB and data files.
Improvements to glm function (WIP).
Bugfixes. Added doc-string.
Add better support for link functions.
Incorporate @jsalvatiers suggestions.
Factored glm into its own submodule.
Add patsy and statsmodels to travis.
Changed interface to be more automatic.
Updated notebook.
ENH: Added option to individually specify priors.
DOC: Changed GLM example to be more transparent.
DOC: Converted cell to markdown.
Update glm NB.
Set GLM init values as test_values instead of returning them.
Fixed imports.
Updates to glm IPyNB.
Added trace_to_dataframe function.
Added GLM doc strings. Made statsmodels optional.
Added glm.plot_posterior_predictive().
Updated GLM NB.