Add filename* for a download name past ASCII

The plain, snapshot and blob pages sent a name such as café.txt raw in
filename, which a client may read as ISO-8859-1. RFC 6266 has such a
name sent again as filename*, percent-encoded in UTF-8, for a client
that knows the form, with filename first for one that does not. The
extended form carries UTF-8 alone, so a name that is not valid UTF-8
keeps the plain filename by itself.

0 files changed, 0 insertions, 0 deletions