Hart. Zoom level 3
Move Hart cobrand back to FMS.com template

Adding the hart additions into the main fms.com cobrand's templates, rather than
building off bromley's weirder set up, so that we get things like a full screen map
for free
Switch Hart templates to put navigation in footer

More moving back to what FMS.com does
Move the 'Powered by' banner inside the main content

This will mean we don't have to clear is in css, and we then don't break the map
Hart. reset various CSS/templates
Hart. substitute blue tab for green

(WIP. this is still Oxfordshire, rather than Hart green)
Hart. remaining HTML/CSS changes for large map

Fixes by @stevenday