Currently the installer does a lot of stuff in the background but for all the user knows it might have crashed as the window just disappears. Let's give the user more to look at.
We can use the zenity progress window, use --pulsate so somthing moves and print out the steps with a "#" prefixed, so they'll be shown as text in the window.
This is kinda done now but should provide more details and info. Also currently the installer doesn't fail gracefully.
Somehow the installer breaks only with zenity. This better be improved.
Done. Now the only thing left to do is perhaps to make the copy feedback a little more interesting. Currently it only sits there for a few minutes doing nothing with no sign of activity. Though to be honest, the whole installation is fairly fast in general. It just might take some time from a slow USB stick.