This repo is now testing only with Python 3, so let's make
a few cleanups:
- Remove python 2.7 stanza from setup.py
- Switch to using sphinx-build
- Cleanup doc/source/conf.py to remove now obsolete content.
- Use newer openstackdocstheme version
- Switch to hacking 3.0
Change-Id: Id3a7e6b6a6160358efb897cbf73630d96672d4fb
Adds the basics of the new os-capabilities library, including a README
and a couple helper functions that allow the user to list both symbol
names as well as the capability strings themselves.
Added x86 CPU instruction set extensions as an initial set of namespaced
standardized capability strings.