Partially functional sphinx extension
Output a proper table for opt ref
Option subsets
Parsed data type almost works
Figured out the parsing issue but don't feel like finishing it right now
Fix option ref chicken-and-egg problem
Fix xrefs in option type field
Improve option formatting
Alphabetize option lists
Standard library references link to standard library
Fix parsing of option descriptions
Convert all options to use the fancy new extension
Fix a config reference table heading
Add some comments
Fix some stuff
Better option_extension documentation
Merge pull request #702 from irskep/sphinx-extension

Sphinx extension for defining options, add intersphinx