Rearranged initial env

[gregr]

This is the same change I showed earlier.

I don't have the dependencies set up to test this in Barliman on my end, so try it out first.

[gregr]

I got Chez installed. It takes 22.5s, but it looks like the 'even harder' query does work now!

> (time (run 1 (q)
        (evalo
         `(begin
            (define append
              (lambda (l s)
                (if (null? l)
                    s
                    (cons (car l)
                          (append ,q s)))))
            (append '(1 2 3) '(4 5)))
         '(1 2 3 4 5))))
(time (run 1 ...))
    35 collections
    22.546730816s elapsed cpu time, including 0.006898530s collecting
    22.759408733s elapsed real time, including 0.007011698s collecting
    295384272 bytes allocated, including 293515472 bytes reclaimed
((cdr l))