* lisp/net/shr.el (shr-url-at-point, shr-probe-url)
(shr-probe-and-copy-url, shr-maybe-probe-and-copy-url): New functions,
split out from `shr-copy-url'.
(shr-copy-url): Only copy the url, don't fetch it.
(shr-map): Bind 'w' and 'u' to `shr-maybe-probe-and-copy-url', which
has the same behavior as the old `shr-copy-url'.
* etc/NEWS: Announce changes.