MFC: also copy the loader.
Merge multicast support from current.
MFC: "devicename" consistancy.
MFC: be more selective in copying /boot contents.
Catch up with changes made in -CURRENT branch.

Egged-on-by:  jkh
    Backport from -4.x, fix bogus clearing of B_CACHE for NFS related bp's.
    NFS tracks valid/dirty via the bp.  Clearing the B_CACHE here could
    cause NFS corruption.
MFC: Mention the error when we fail to connect().
MFC: remove obsolete syscons options (rev 1.104).
MFC: remove obsolete syscons options. describe vga options (LINT 1.541).
MFC: use VESA modes if available (rev 1.4, 1.5).
MFC: pull down the splash screen when someone is about to read from
the keyboard (rev 1.294).
MFC: keycode fixes (atkbd.c, rev 1.4, kbdtables.h, 1.43, 1.44).
MFC: unload the splash decoder module before loading a screen saver module
(rev 1.38).
MFC:
- Fix inconsistent key-function assignment.
- Added Finnish and Croatian keymaps.
Adjust for new boot.flp size.
MFC: fix inconsistancy in accounting for stack sizes.
matches 1.144->1.145
MFC: usage() and SYNOPSIS sanity.
MFC: Add -b option to rewrite mbr code.
Correct include paths
Remove unnecessary additional CFLAGS
Remove BINGRP and BINMODE
Move CFLAGS to God's Own Position
Remove white space between CFLAGS and +=
Remove unneeded options

Implied-by: bde