Building a QA Community for Security/SRU Application update testing

Application QA for stable release updates and security updates is technically supported by the ubuntu qa tracker (e.g. http://mozilla.qa.stgraber.org).

However, it turns out to be hard to tap the community to provide feedback for those updates and even harder to get enough community feedback to ensure a constantly high quality of high-risk application updates.

This blueprint covers the required procedures, infrastructure and desktop tools to build a vital community that provides feedback on high-risk SRU/Security updates.

Initial ideas are:
 * allow users to subscribe to QA repositories in a prominent place on the desktop (e.g. gnome-app-install dialog)
 * provide users with tray notifications when they are running preview packages (e.g. from proposed) for applications supported by the qa tracker
 * provide a -proposed archive infrastructure for security updates.