element-hint.lisp: allow downloading multiple hints at the same time
element-hint.lisp: allow downloading multiple hints at the same time

we use a sleep to avoid breaking the download function, which cannot
accept multiple downloads at the same time

“My object then,” replied Darcy, “was to show you, by every civility
in my power, that I was not so mean as to resent the past; and I hoped
to obtain your forgiveness, to lessen your ill opinion, by letting you
see that your reproofs had been attended to. How soon any other wishes
introduced themselves I can hardly tell, but I believe in about half
an hour after I had seen you.”

jmercouris/NeXT,jmercouris/NeXT