Save location of stored remember notes when saving with org-refile
This sets the bookmark org-remember-last-stored to the location
of the stored remember note when it is filed using C-1 C-c C-c
(the org-refile interface)
Both org-refile-last-stored and org-remember-last-stored bookmarks
will point at the same place after saving the remember buffer.
This makes jumping to the last stored remember note more consistent