Fix bug 6147 (selected icons flash unselected/selected rapidly):

	* src/nautilus-window-manage-views.c: (change_selection): Don't
	send out selection change notices to the view that reported the
	selection change.
	(change_selection_callback): Pass in view that requested the
	change so we can know not to send a selection change to that view.
	* src/file-manager/fm-directory-view.c:
	(fm_directory_view_send_selection_change): Clear flag that says we
	have a selection change for the shell.
	(selection_changed_callback): Add code to indicate this selection
	change is due to the shell, so we don't tell the shell about
	something it just told us.
	(done_loading): Set flag so we don't tell the shell about selection
	changes that are part of the first load of the directory.
	(display_selection_info_idle_callback): Only send a selection change
	to the shell if the change was initiated here. Also remove the code
	that ref's the NautilusView object -- wasn't helpin...