Basic Postgres AuthManager support (#622)
Use car_warrantyStart for DDG field (#634)
Change onService rule (#640)

Reorder code to match dataField* definition order
Update exportable SAGAI cases condition used in /psaCases/* (#581 followup,
#634)
Merge carma-http changes from geo-updates branch
Finalize merge 36438b0
Export billed false calls (#636)
Expense type for a case is now always Dossier (#635)
Export consultation services (#637)
Split user permissions routines into AppHandlers.Users module
Use more appropriate names for auth combinators
Add AppHandlers.Users to .cabal
Use Postgres roles in permission checking handler combinators (#622)
Add snap_auth_user_roles creation to database_init
Clarification
Use PG roles in serveUserCake, move it to AppHandlers.Users (#622)
Use PG roles when serving models, move PG roles-specific code
to separate module (#622)
New combinator to replace user roles from PG (#622)
Use PG roles when assigning actions in littleMoreActionsHandler (#622)
Merge from master