Filter by tags.

See merge request !93

This is a hack to preserve filters.

Handle mutable hack better.

See merge request !92

Proffessionals at work.

Filter by location

See merge request !91

Also include a 'clear filters' button (total hack).

Also try to pass params between GET/POST for better user experience.

Remember date filter values

See merge request !90

Set filename for location coverage export.

See merge request !89

Protect /api/location-coverage with SessionAuthentication.

See merge request !88

CSS and template changes to edit item view.

See merge request !87

Filter on date range

See merge request !86

Remove binding of query parameter with filter so we can filter on more than one
and display a single template with multiple filters

Make terms optional in ItemSerializer

See merge request !85

Fix 'This field is required' errors. No idea why we didn't see this before.

First stab at some location coverage.

See merge request !84

CSS styling and template reorganisation

See merge request !80