Remove unused import
Add missing unique constraint on display names
Add accessor functions to db classes
Get account by email and get user ID for account ID
Add set and get intervals to schedule entity
Update PHPUnit test script to run tests in all modules

By default the script will run the tests defined in each of the
modules (`module/*/test` directories), but to run only the tests
for a particular module:

    MODULE=XYZ scripts/test-phpunit
Add schedule {Api,Db}
Allow dd to take multiple arguments
Create and assign schedule
--- SQUASH ME WITH 2081a151 PLEASE --
TODO: Transaction ALL THE THINGS
Update Lookup README to note assumptions made