Remove old site files

Remove the old site files to make way for a fully fledged Symfony app.
Add default Symfony app
Add vm ip to config whitelist
Add vm ip to app_dev
Update VM PHP settings

Symfony requires a correctly set timezone in PHP. Disabling shorttags are
recommended.
Add the bundle definition for public site area

All the public facing site pages will be grouped together in the public
bundle.
Add knp menu bundle
Add initial layout and home page route
Add top level section controllers and templates
Fix title typo
Add knp menu
Add correct controllers and routes
Add sub menus
Update views for new pages
Change readme extension
Fix typos in subnav title
Add base sass config
Merge pull request #2 from shanethehat/feature/symfony-site

Add Symfony Site