This product aims to simplify running and writing third-party
Generic Setup upgrade steps in Plone.It provides a control panel for running
multiple upgrades at once, based on the upgrade mechanism of Generic Setup
(portal_setup).Further a base class for writing upgrade steps with a variety of
helpers for common tasks. 
Usage
----- 
$ UPGRADE_PUBLIC_URL=http://localhost:8080 ftw-upgrade sites --auth admin:secret 
or 
$ UPGRADE_PUBLIC_URL=http://localhost:8080 UPGRADE_AUTHENTICATION=admin:secret ftw-upgrade sites 
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