MAINT: Update patsy min version
Merge pull request #2046 from jseabold/patsy-version

MAINT: Update patsy min version
DOC: Just use github for roadmap
DOC: Rename file
DOC: Make more pythonic
DOC: Use get_rdataset.
DOC: Use formula namespace
DOC: Cleanup docstrings.
DOC: Fix directive.
DOC: Fix bullet list.
DOC: Add release notes to index
DOC: Fix docstrings.
Merge pull request #2047 from jseabold/docs-cleanup

DOC: Documentation cleanup
RLS: Set version number to 0.6.0rc1
TST: Test for MNLogit with strings/factors.
ENH: Make sure MNLogit works with string/factor y
TST: Silence tests.
REF: Refactor for DRY. Handle numpy-like like numpy.
STY: Remove commented code. Pep-8
TST: Fix test for debian failure.