Add Regularization

This release adds regularization fitting the sklearn API

Fix Glimpy Setup

This release fixes glimpy setup by using install_requires rather than requirements.txt files

https://packaging.python.org/discussions/install-requires-vs-requirements/

Initial Glimpy Release

glimpy is a Python module for fitting generalized linear models. It's based on the scikit-learn API to facilitate use with other scikit-learn tools (pipelines, cross-validation, etc.). Models are fit using the statsmodels package.