v1.0.0b - In which "The 'b' stands for 'bastard'."

This release was never well supported, and yet was in the wild for a long time.

• The built in development server now auto reloads when files changes.
  [robatron].
• A new contributed hook, wok.contrib.hooks.compile_sass, that does exactly
  what it says on the tin [robatron].
• Add support for Jinja2 extensions.
• Better unicode support.
• Really use None for missing date/time values. [remram44]
• Fix HeadingAnchors to write saner HTML [Hein-Pieter van Bramm]
• Experimental support for relative links.
• Improvements to pip-installability.
• The hook site.output.post is now only run once, not once per file.