(ffap-dired-wildcards): Set default to "[*?][^/]*\\'". Doc fix.

(ffap-dired-wildcards): Set default to "[*?][^/]*\\'". Doc fix.
(ffap-directory-finder): New variable.
(ffap-string-at-point-mode-alist): Add * and ? to `file'.
(ffap-file-at-point): Add /* to immediately rejected names.
Return absolute file names matching ffap-dired-wildcards.
(ffap-read-file-or-url): Set default value for `completing-read'
to `buffer-file-name'.
(find-file-at-point): When filename matches ffap-dired-wildcards,
call ffap-file-finder with t arg `wildcards', instead of dired.
(ffap-other-window, ffap-other-frame): Return visited buffers.
(ffap-read-only, ffap-read-only-other-window)
(ffap-read-only-other-frame, ffap-alternate-file): New commands.
(dired-at-point): Call ffap-directory-finder instead of dired.
(ffap-dired-other-window, ffap-dired-other-frame)
(ffap-list-directory): New commands.
(ffap-bindings): New keybindings for new commands.