Make Storage, Db, and tests more modular.
To prepare for a new backend that doesn't use postgresql. First step toward #1306 (closed).
Test Plan
'tox' still runs the same tests, and doesn't fail.
Migrated from D631 (view on Phabricator)
Staging instance, all changes can be removed at any time
To prepare for a new backend that doesn't use postgresql. First step toward #1306 (closed).
'tox' still runs the same tests, and doesn't fail.
Migrated from D631 (view on Phabricator)