Merge branch 'master' of ssh://webmasters.boum.org/~/wiki
Update first screen to our latest decisions
Reduce the number of mockups
Rename the "Change" button as "Erase"

It should make it clear that this information is erased from the media.
Update screenshots for tour
Change computer icon by plan icon
Merge branch 'doc/8241-update-greeter-screenshots' (Closes: #8241)
Merge branch 'master' of ssh://webmasters.boum.org/~/wiki