https://github.com/scitran/api/wiki/Data-Model

check keys in requests from schema

https://github.com/scitran/api/pull/47/files

add timestamps to files
do not cache container in the storage class

remove old code from Container class

perm_checker is now a function that returns a decorator to allow more complex logic

introduce dao layer to handle db interactions for lists
use permissions checkers to validate queries

created route to handle roles get, post, put, delete for groups

add measurements on CollectionSessions

Simplify root & wheel fields

Advanced filtering

allow avatars.* to be set on a user

Remove obsolete apps_path flag

Generate job information on-the-fly

Correct abandoned jobs query

Add session counts to projects and collections