Fixed navigation on "readthedocs" theme

All pages are now rendered. Headings on current page are rendered as
subpages. Navigation is fixed on site and does not scroll when using
anchor links.
Fixed win path
Merge pull request #49 from Hernrup/master

Navigation on "readthedocs" theme
More helpful messages on 'serve'
More helpful messages to 'build'
Minor copy changes.
Hide unfinished docs.
Add 'new' command.
Improve 'new' command.
Allow extra css and extra javascript in docs dir
Tweak new project text.
Include extra css/js in readthedocs theme
pep8 cleanups
Nicer output during 'serve' - don't display build dir
Add 'ghp-deploy'
Add `include_nav` and `include_next_prev`
Tidy up config.
Version 0.6
Fix gh-deploy output
Version 0.7