DB changes to store and render historic disease extents
Hibernate bindings for new historic disease extents table
Store historic model run disease extent classes in database when
triggering a model run
Produce extent file in dry runs
Send extent raster from MW to MOH in results zip. Extract to filesystem in MOH
Add geoserver layer and style config for extent display on atlas
UI changes for display/download of extent in atlas
Merge pull request #299 from SEEG-Oxford/atlas-disease-extent

Show disease extent on atlas