Make sure the Leaflet contribution footer is visible (was moved out of the viewport).
Add navigation to leaflet contribution footer.
Merge branch 'refs/heads/link-about-us-and-legal-on-homepage'
Add min and max zoom presets for map.
Remove hard coded lat/long for Berlin.

Not needed, as the map is not centered on Berlin anymore.
Merge branch 'refs/heads/feature/min-and-max-zoom-263'
Add missing attributes in ownership hash.
Delete duplicate attributes in rabl templates.
Merge branch 'bugfix/missing-ownership-attributes'
Added FAQs (model, controller, admin page, migration, views)
Gemfile: add lorem ipsum generator to development group
rake: add generator for some fake FAQs
Layout: add FAQ link to static footer
Faq: add validators and rspec tests