Update setup.py to work, rework file structure

- rebase sass files to ./sass
- Place all theme files in ./sphinx_rtd_theme
- Grunt now uses `default` and `build` tasks
- `build` will minify css for committing / dist
- Added Gemfile and requirements.txt for python/ruby requirements
- Cleaned up Gruntfile, copying no longer needed.
- moved compass config to compass.rb

Squashed commits:

- Move out sphinx_rtd_theme to root folder
- Manifest unneeded
- Move out sass to root dir
- Remove dist from git
- Reconfigure paths
- Add requirements for sphinx
- Add gemfile for compass
- Udpate components path
- Move to static/css
- Add line for rbenv
- Require livereload, don't need copy
- Comment static path, update theme path for demo conf.py
- Add css files
- Correct name of .ruby-version...
- Update path to theme.css
- Remove unprefixed badge_only.css
- Update location of theme.js
- Update paths in Gruntfile, tasks
- re-add __init__.py, bump version
- Update setup.py to pick up version easily
- Move config.rb to compass.rb
- Correct compass import paths
- Add debug / production environment
- Commit with production built css
- Add theme.conf, get requires from requirements.txt
- rename tasks, use sphinx-build, add comments
- Fix font path
- Update css files
clean fix