2014/1/23 Cecil Westerhof <cldwesterhof@gmail.com>

> (defun dcbl-move-item-to-begin-of-list (&optional item)
>   (interactive)
>   (save-excursion
>     (when item
>       (goto-char item))
>     (org-list-send-item (line-beginning-position) 'begin
> (org-list-struct)))
>   (previous-line))
>
> (defun dcbl-move-item-to-end-of-list (&optional item)
>   (interactive)
>   (save-excursion
>     (when item
>       (goto-char item))
>     (org-list-send-item (line-beginning-position) 'end (org-list-struct))))
>

There was not enough error checking. Better is:
(defun dcbl-move-item-to-begin-of-list (&optional item)
  (interactive)
  (let ((list nil))
    (save-excursion
      (when item
        (goto-char item))
      (setq list (org-list-struct))
      (if (not list)
          (message "Not in a list")
        (org-list-send-item (line-beginning-position) 'begin list)))
    (when list
      (previous-line))))

(defun dcbl-move-item-to-end-of-list (&optional item)
  (interactive)
  (let ((list nil))
    (save-excursion
      (when item
        (goto-char item))
      (setq list (org-list-struct))
      (if (not list)
          (message "Not in a list")
        (org-list-send-item (line-beginning-position) 'end list)))))

-- 
Cecil Westerhof