add cancel button to feedback form; change to page where form is
don't display the nonsense ios location error message
layout size tweaks for iphones
Merge fixes: layout, location error, feedback form

* oulu-navigator:
  layout size tweaks for iphones
  don't display the nonsense ios location error message
  add cancel button to feedback form; change to page where form is
update to leaflet 0.7.1 and latest leaflet.label
add css class based on map zoom for styling
update retina image file name of leaflet marker