terminals don't get them) and 4072 (mime types: command= string
	can't take args?).

	* libnautilus-extensions/nautilus-gnome-extensions.c
	(nautilus_gnome_terminal_shell_execute): Don't take the shell as
	an argument, just use "/bin/sh", there's no reason to use any
	other shell for the purpose of launching a terminal like this.

	(nautilus_gnome_open_terminal): Don't pass user shell to
	`nautilus_gnome_terminal_shell_execute'; handle `gnome-terminal'
	properly by passing it "-x" instead of incorrectly trying to quote
	the command.

	* libnautilus-extensions/nautilus-gnome-extensions.h: Fix minor
	typo.

	* libnautilus-extensions/nautilus-program-choosing.h,
	libnautilus-extensions/nautilus-program-choosing.c:
	(nautilus_launch_application_from_command): Add a use_termial
	argument and if passed, launch the program in a terminal; minor
	fixes to the way non-terminal-requiring programs are launched as
	well, including not quoting the command, so that it can include
	command line arguments (if the command name includes a space, it
	had better be quoted already).

	(nautilus_launch_application): Use the new `use_terminal' argument
	when calling `nautilus_launch_application_from_command'.

	* libnautilus-extensions/nautilus-program-chooser.c:
	(launch_mime_capplet): Use the new `use_terminal' argument
	when calling `nautilus_launch_application_from_command'.

	* src/file-manager/fm-desktop-icon-view.c
	(change_desktop_background_menu_item_callback): Use the new
	`use_terminal' argument when calling
	`nautilus_launch_application_from_command'.

	* src/file-manager/fm-directory-view.c (activate_callback): Use
	the new `use_terminal' argument when calling
	`nautilus_launch_application_from_command'. Also, shell-quote the
	command, since nautilus_application_launch_from_command won't do
	that for you any more.