* gdesktop.c (select_range): Fixed selection of ranges where the
starting and ending icons are in the same vertical or horizontal
slot.
(reload_desktop_icons): Fixed incorrect usage of
g_list_remove_link(). Also, moved the functionality from the old
load_desktop_icons() here. Now all icons are always loaded
efficiently, and there is no need for the "incremental" flag.
(desktop_icon_info_delete): Delete the icon position information.
* gmetadata.c (gmeta_del_icon_pos): New public function to delete
the icon position information from a file.