Adding ability to test for context permissions for an array of context keys (useful for things like hierarchical context permissioning)
Making api around context perms more consistent. Don't have an argument that can be two different types and with an ambiguous name
Adding the model preside object + fixing issues with the code when tested w/ real db interactions
First tentative use of a context perm check - does user have read permission on particular preside object (PO is the context)