QA Test Day spin changed to use favorites more

[Bruno Wolff III]

I tried to get back some of the features that the QA Test Day spin had
before the change to gnome shell. I now have some of the desktop icons
working as favorites instead. firefox has been set to have the current
test day page as the start page and not to show a welcome page the first
use after every reboot.

If you guys want it tweaked some more, the code there now should provide a
basis for making related changes.

The install to hard drive may need some more work. In live base it was changed
to anaconda and I am not sure why. When I tried liveinst out I got an error
message that seemed not to be directly related to having it as a favorite.