Comment 3 for bug 794120

Let's keep this simple and simply change the menu to say "Publicize with Gwibber" as that tells our student what's going to happen and how. I'd suggest that we add a line to the man page as well, maybe referring to the gwibber accounts and preferences dialogs.

When I checked the python help for gwibber.lib it appears that this menu item will send a message to every active gwibber account, not just twitter, so the changed menu item should be more accurate.