New features with version 4.1:

- definable timeout and

- default operating system for timeout
  or rebooting of last recently booted system

- options for first installation '-i'
  and reinstallation (for upgrading from 3.x) '-r'

- BOOTINST prepares root directory for easy 
  DOS installation via the SYS command

Version 4.2 is a minor bug fix in the installation routine.
