fuel.eval: re-use listener:parse-lines-interactive.
simple-tokenizer: cleanup using list.
core-foundation.time: change epoch to constant.
serialize: some cleanup.
use ``tuple-slots`` instead of ``tuple>array rest``.
search-deques: simplify pop-front* and pop-back*.
core: update some help $value types.
circular: fix formatting on the last line.
improve help by linking to types directly.