Summary: Ref T5245. This moves the actual storage over and stops reads and writes to the old table.
Test Plan:
- Verified tasks retained projects across the migration.
- Added and removed projects from tasks.
- Searched for: all, any, users' projects, not-in-projects, no-projects.
Reviewers: chad, btrahan, joshuaspence
Reviewed By: joshuaspence
Subscribers: epriestley
Maniphest Tasks: T5245
Differential Revision: https://secure.phabricator.com/D9850
