:for clauses now have finalizers! This means (in-file "path") now works. This meant I had to do some restructuring of many nasty pieces of code, but I believe it works. cl-next was broken up into cl-next/acc and cl-next/for. Accumulators have to pass :acc to (cl-next/acc ...). I plan for :for clauses to do the same.
I fixed tests.scm and README.md to reflect the de-racketification of the for loops.
goof.scm
* Changed cl-next to properly push all intermediate loops
* Changed emit-many/rest to emit intermediate loops
* Added loop/list as a shorthand for just accumulating lists.
tests.scm
* Collected some things I wanted ta have to track regressions.
README.md
* Reflect above changes
