Summary: This is the script used for conversion: P319
Test Plan:
Update diff with UTF-8 characters in description.
`sql/upgrade_schema.php`
Verify data in DB and that it looks good on web.
Reviewers: epriestley, nh
Reviewed By: epriestley
CC: aran, epriestley
Maniphest Tasks: T327
Differential Revision: https://secure.phabricator.com/D1830
