* gicon.c (gicon_get_filename_for_icon): Return const char *, this
tells the user of this routine "you better not touch or free this
you dofus".
* gnome-file-property-dialog.c (apply_metadata_change): Always set
the name of the icon to the new value, as the entry will always
match the imlib image anyways (due to the fixes I did to const
correctness).
(generate_icon_sel): Do not free the value. We do not own this
return value.
* gdesktop.c (is_mountable): NULL terminate string returned from
readlink. Yes guys, readlink does not NULL terminate things.
(do_mount_umount): ditto.
* gnome-file-property-dialog.c (init_metadata): ditto