Add dry-run, max version options to upgrade_schema.php script
Summary:
- Dry run option allows you to run the script to see what patches would get
applied (without actually applying them).
- Max version allows you to do a partial upgrade.
Task ID: #
Blame Rev:
Test Plan:
ran a dry run twice (to make sure it didn't do anything) and no max version
ran with a dry run and max version to check max version logic works correctly
ran with just a max version, and only patches up to that point got applied
Revert Plan:
Tags:
Reviewers: epriestley, btrahan, jungejason
CC: aran, epriestley
Differential Revision: https://secure.phabricator.com/D1758