Issue upgrade guidance to rebuild indexes for the Ferret engine
Ref T12819. This is shipping, so issue upgrade guidance to instruct installs to rebuild the index.
Also generate a new quickstart.sql since we haven't regenerated in a bit and there's been a large amount of table churn fairly recently.
Test Plan: Ran bin/storage upgrade, saw guidance notification in UI.
Reviewed By: chad
Maniphest Tasks: T12819
Differential Revision: https://secure.phabricator.com/D18594