DOC: Add default for getenv. Fix paths. Add print_info
Merge pull request #1431 from jseabold/fix-docs-build

DOC: Add default for getenv. Fix paths. Add print_info
DOC: Follow symlinks for anacron. Add logging.
STY: Pep-8 and remove unused variables.
DOC: Redirect all stdout and stderr.
Merge pull request #1436 from statsmodels/fix-tools-docs

DOC: Fix auto doc builds.
ENH: Option to avoid "center" environment.
STY: Cleanup code.
DOC: Fix indexing bug. Fix plot.
DOC: Fix bad namespace.
STY: Make output cleaner. Cleanup plotting.
DOC: Make plots bigger.
DOC: Cleanup plotting
DOC: Cleanup plotting.
DOC: Cleanup plotting.
DOC: Print summary. Fix import.
DOC: Make plot a little smaller.
DOC: Increase plot size
DOC: Add examples landing page.
DOC: Move old index.rst to template.