- improve coverage
- use latest pip on travis
- update to tox 3
- guard Python < 3.3 warning with PYMAJOR == 3 condition
- docs improvements, esp. for viewing on GitHub:
- fix `foo <bar>`__ link syntax (always use two underscores)
- use `.. code: python` for code blocks to enable GitHub syntax highlighting
- ditch `.. include::` which GitHub does not support
- use sphinx.ext.autosectionlabel
- only wrap linkcheck with travis_retry
- s/sibbell/libraries.io