Merge pull request #3 from ahinz/bug/vagrant

Properly mount share as otm
Merge pull request #5 from ahinz/topic/models

Working model set from old Open Tree Map
Scope urls in the correct projects
Add new decorator, @instance_request, for views that are scoped

A view that must be bound to a particular instance of OTM can now simply
add @instance_request and the request object is guaranteed to have an
instance property that contains a valid instance object.
Add in tests for geo hashes
Test audit rules
Add python3 imports