Chris Earle

ENH: Add bayes glm model

2

- [x] tests added / passed. - [x] code/documentation is well formatted. - [ ] properly formatted commit message. See [NumPy's guide](https://docs.scipy.org/doc/numpy-1.15.1/dev/gitwash/development_workflow.html#writing-the-commit-message). The Bayes Generalized Linear Model (BGLM) is available...