Revision 208274

MFC r207006:

Remove the reference to DD mode, and replace "Wizard" mode with "Expert" mode.
Also, make sure the "Q = Finish" text is visible.
Reword the boot manager screen to try and avoid confusion, and make the
order of the menu items match that in sysinstall.

PR:		bin/142916
Submitted by:	Jeremy Chadwick <freebsd at jdc.parodius.com>
Approved by:    rrs (mentor)