Remove the temp files wizard page

[johnnycz]

The page where I select where to put the setup files is confusing. It has lots of text in it and the whole "nice and easy" process of installing basically dies here and I need to try to read and understand what this is all about - as I don't really know if it's safe to just skip this. The wizard should just remove the temp files after it's done and it should figure out a good temp dir on its own. Perhaps there could be a [ ] keep temp files after install option somewhere, but I'd rather be against that too.

If the goal is to have a way to "create an offline installer only", then that's what it should offer and it should be the only thing it offers. I think having a separate tool for this would be even better - those two tools don't have much in common (from the users point of view, perhaps there are great overlaps from the programming point of view).