more JS

- 2 more pages (imprint, karte to confirm form input)
- font awesome on external cdn
- better parallax (modified stellar)
- built in Zurb Foundation framework
- reworked design to responsive design
- more high res images
- JS: contents of submitted form are read out on karte.html
- built fixed FB like button
- built in FB share button
- removed search bar in nav bar
- included uservoice
- expanded footer to include FB share button and uservoice