* libnautilus-extensions/nautilus-program-choosing.h,
	libnautilus-extensions/nautilus-program-choosing.c:
	(nautilus_launch_application): Take a GnomeVFSMimeApplication *
	instead of a command string; add gnome-terminal -x
	(nautilus_launch_application_from_command): Old version that takes
	a command string renamed. Also, uses `system' instead of `execlp',
	so command-line arguments in the command string work.
	* libnautilus-extensions/nautilus-program-chooser.c
	(launch_mime_capplet): Adjusted to conform.
	* src/file-manager/fm-directory-view.c
	(fm_directory_view_launch_application): Likewise.
	* src/nautilus-sidebar.c: (command_button_callback,
	nautilus_sidebar_chose_application_callback, add_command_buttons):
	Likewise.
	* test/test-nautilus-mime-actions.c (print_application): Show the
	requires_terminal field for applications.