The source project of this merge request has been removed.
get_string_for_date: Use "Yesterday" and "n days ago" correctly.
Some languages don't have plurals, some reuse the singular form for numbers like 21, 31, 41... Therefore if you want to display "Yesterday" instead of "1 day ago" you must do it explicitly. You can't rely on ngettext(), you can't assume that n == 1 is always singular and n != 1 is always plural.