Load a theme by default
Enable theme selector
Merge branch 'gh-pages' of github.com:driftyco/graphite into gh-pages

* 'gh-pages' of github.com:driftyco/graphite:
  Updated theme index files
  New theme names
Correct theme names
Style the three steps
Merge branch 'gh-pages' of github.com:driftyco/graphite into gh-pages

* 'gh-pages' of github.com:driftyco/graphite:
  Docs update
Merge branch 'gh-pages' of github.com:driftyco/graphite into gh-pages

* 'gh-pages' of github.com:driftyco/graphite:
  CSS tweak on docs