TST: Test invlogit stability.
ENH: More numerically stable version of invlogit.
STY: Pep-8
ENH: More numerically stable inv. nbinom.
STY: Pep-8
REF/ENH: Use clip pattern. Use it for resid_dev in Poisson.
DOC: Fix versions to match other docs.
Merge pull request #2029 from jseabold/update-versions

DOC: Fix versions to match other docs.
Merge pull request #2028 from jseabold/invlogit-stable

ENH: Fix numerical issues in links and families.
DOC: Silence fit.
ENH: Allow user to control formula namespace depth.
DOC: Add eval_env to documentation.
DOC: Add eval_env note to release notes.
DOC: What it is what it is.
Merge pull request #2031 from jseabold/patsy-env

ENH: Expose patsy eval_env to users.
Merge pull request #2032 from jseabold/update-readme

DOC: What it is what it is.