add database dump

upon further reflection, adding the whole database dump, so we get
versioning
relations for countries

wire up relations for countries to have sightings, locations, species,
trips
states belong to countries
change carousel look

per important user, don't have gray background and don't overlay
caption on photo
new structure file

I guess this replaces db/schema.rb?
clements checklist data

the big kahuna from Clements / Cornell