MOAR PermGen!

and a fix to how we are specifying :jvm-opts
Merge pull request #151 from MastodonC/feature/moar-heap

MOAR HEAP!
Add k.h.d.entities/get-entities-having-location.
Add boilerplate for property_map.
further js/css gymnastics.
Incorporate @annapawlicka comments.
add stub view link.
Improve address formatting.
Use @otfrom shiny address slugs.