The total of steps is hardcoded in the CSS for the scenario. CSS
counters can't calculate the total before reaching the end of the page.

Conflicts:
	wiki/src/upgrade/clone.mdwn

I think that saying "Clone from another Tails" here was on purpose,
taking for granted that people would already know what "clone" means in
this context. But let's try the other way first...

Conflicts:
	wiki/src/install/inc/router/clone.mdwn
	wiki/src/install/inc/stylesheets/scenarios.css
	wiki/src/install/inc/stylesheets/steps.css
	wiki/src/install/win.mdwn

Conflicts:
	wiki/src/install/inc/stylesheets/download.css

In the end, we only want the extension to reset it states if:

1. The IDF changes
2. The "Download again" button is clicked
3. The "Cancel" button is clicked

So we don't need the "Next" button anymore, we can inline this and
provide all the instruction on the same page.

Conflicts:
	wiki/src/download.inline.mdwn
	wiki/src/install/inc/stylesheets/steps.css