20.1.0
Refactor docs and switch to RTD theme
Gut docs for now
Add attr.field (#669)
Add default_role for Sphinx. (#571)
Repo janitoring
Remove intersphinx mapping to zope.interface
Clean up main directory a bit
Fix doc build on sphinx 1.6.1
Add attr.resolve_types (#302)
Add on_setattr hooks to attr.s and attr.ib (#660)
Explain that slotted classes don't support multiple inheritance
Split cmp into eq and order (#574)
Fix links
Add Python 2 statement (#498)
Rephrase for clarity
Fix simple typo: developement -> development (#600)