Version 0.6.0

Added the screen that presents the Terms of Service and Privacy Policy again, and takes your acceptance, when a new version comes into force.

Until now the server refused uploads, shares, renames, restores and extensions once the documents changed, and section 15.5 of the Terms said the screen that would take your acceptance did not exist. It exists now: signing in after a change shows it before anything else, and being refused mid-session leaves a line above the screen instead, so a download already running is not cut off. Declining is a button beside accepting, and reading, downloading, deleting, the support inbox and deleting your account keep working either way. Nobody sees this screen until a version actually changes.