Add MongoDB querying for nearby categories and amenities
Update transport importers to use similar slug format as places
Get rid of transport app (but keep NaPTAN importer around)
NaPTAN importer no longer has concept of hierarchy
Apply categories to NaPTAN POIs
Use Metro stop subtyping from Molly 1.x
Put location on imported points of interest
Update the importer to use the places service
refactor common xpath query pattern
Add meaningful command descriptions to mollyrest tool
Add more graceful handling of unrecognised metro types
Expose NaPTAN stops in nearby view by default