Fix bug causing autoboot on 750/780 not to work. Cleanup.

Use a common routine ubmap() that setup the map registers as needed,
not expecting everything to be below 4M. This solves the problem
that large kernels cannot be loaded reported on port-vax.

Update copyright notice for Ludd (remove clause 3 & 4).

fix unused variable warnings

bzero -> memset

fix pointer signedness and build with GCC4.

Correct a mistake I introduced when getting rid of lvalue casts.

Get rid of lvalue casts by either using an extra temporary variable
or by using the appropriate casts in the first place.

merge ktrace-lwp.

Use the form of #include <...> rather than #include "..." for headers of
which paths don't start from the current directory.

Remove trailing spaces.

Need longer delay while waiting for mscp packets, otherwise it times out
on VAX8650.

%d -> %ld in some debug messages, after the ELF switch.

Add support for loading a 2nd stage boot in either a.out or ELF.
Add support for loading a 2nd stage boot directly to it's desired address
if possible.
cleanup use of u_int/size_t.

Add support for VAX 6000 + VAX 8000. Tweak console routines.
Create a fake RPB if either netbooted (on machine without RPB) or
loaded from console storage (without VMB intervention).

Fix booting from BI-based disks.

Remove forgotten debug printf.

Change all devices to use the RPB info when autobooting, this allows for
booting from unsupported devices also. As a side effect; it fixes PR#9202.

BI bus files has moved.

Search for include files in new locations.

A bunch of small fixes to make boot work on most VAXen.

New boot program for vax. Appearance similar to the i386 boot blocks.