* lisp/bookmark.el: Add `defaults' property to the bookmark record.
(bookmark-current-buffer): Doc fix.
(bookmark-make-record): Add `defaults' property with default values
to the bookmark record.
(bookmark-minibuffer-read-name-map): Remove key binding "\C-u"
with `bookmark-insert-current-bookmark'.
(bookmark-set): Get `defaults' property from the bookmark record
and use it in `read-from-minibuffer'.
(bookmark-insert-current-bookmark): Remove function.
* lisp/info.el (Info-bookmark-make-record): Add `defaults' property
with values of canonical Info node name, the current Info file name
and the current Info node name.