Move language chooser to map (index page)

I decided to move the language chooser to our index page - the map.
![Screen Shot 2013-03-06 at 6 55 59 PM](https://f.cloud.github.com/assets/60777/228679/6e17f11e-8687-11e2-8935-30e49339d389.png)
Having it there in the footer makes it visually less important, which it is, since the user normaly shouldn't have to use it, because we auto-detect the language.