infrastructure review for 32-bit support
review of maintainer's config script
fixed some test files
changes in preparation of 32-bit boot image rotation
rotated 32-bit boot images
removed internal library (nausicaa language unsafe-operations)
Stop makeinfo 5.1 from erroring out with "@itemx must follow @item".

These were the errors.

 ./vectors.texi:292: @itemx must follow @item
 ./vectors.texi:302: @itemx must follow @item
 ./strings.texi:360: @itemx must follow @item
 ./bytevectors.texi:807: @itemx must follow @item

The cause was that this is legal:

 @item foo
 @itemx bar

while this is illegal:

 @item foo

 @itemx bar

as is this:

 @item foo
 text
 @itemx bar
 more text

and this:

 @item foo
 text

 @itemx bar
 more text
validation clauses raise a procedure argument violation
updated validation clauses
updated validation clauses
updated validation clauses
updated validation clauses
updated validation clauses
updated validation clauses
updated validation clauses
updated validation clauses
update validation clauses
updated validation clauses
updated validation clauses
updated validation clauses