TODO:
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The http libraries cache dns info. So if you disconnect, go somewhere
else, then reconnect, they seem to reuse the same dns servers, which
probably aren't accessible anymore, dunno how to tell the http libs to
reset their caches. misa may be able to help.  he knows httplib pretty well
we use rhnlib so the prob may be in that layer.

Need to resync I18N strings

Restarting capabilities on upgrade (reload) ?

DONE:
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Add a menu entry on the right click popup menu that takes the user to
https://rhn.redhat.com/

Desactivate signature checking when walking the RPM database (CPU usage)

