Save marker and use it in callback for insert

* org-cliplink.el (org-cliplink-insert-transformed-title): Save point as a
marker, and use it in the callback so that it inserts the link at the
position at which the `org-cliplink' command was executed.

org-cliplink.el

@@ -559,10 +559,18 @@ TITLE-REGEXP does not match TITLE, return the original TITLE."
   "Takes the URL, asynchronously retrieves the title and applies
 a custom TRANSFORMER which transforms the url and title and insert
 the required text to the current buffer."
-  (org-cliplink-retrieve-title
-   url
-   (lambda (url title)
-     (insert (funcall transformer url title)))))
+  (let ((m (point-marker)))
+    (org-cliplink-retrieve-title
+     url
+     (lambda (url title)
+       (let ((save-and-restore-position (/= (point) m))
+	     (link (funcall transformer url title)))
+	 (if save-and-restore-position
+	     (save-excursion
+	       (goto-char m)
+	       (insert link))
+	   (insert link))
+	 (set-marker m nil))))))
 
 ;;;###autoload
 (defun org-cliplink-retrieve-title-synchronously (url)