Rename Releeph "Project" transactions to "Product"

Summary: Ref T3549. This table isn't written to yet; rename it and the DAOs and modernize the history controller.

Test Plan: Viewed history page for a product.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T3549

Differential Revision: https://secure.phabricator.com/D8633