move the statocles website

The Statocles website is now at http://preaction.github.io/Statocles

Fixes #138
move Statocles site and prepare gitignore file

The Statocles site is about to get some new content, finally!
bundle the site theme so we can edit it

This is going to be a good test of this feature, which has already
failed to impress me...
add github banner to Statocles site

Fixes #137