io.files: add with-cd. Related to #1214.
http.server: Make sure http.forms is loaded for http.server docs. Fixes #1216.
compiler.cfg: Add vocabulary for words defined just to test compiler.cfg.
io.files: Move with-cd to the tests file so that nobody uses it. My bad. Basically nobody should ever use cd or cwd for anything. Fixes #1214.
reddit: Add more slots that cause it to fail. There has to be a better way!
json.writer: Allow more objects to be keys in >json. Not completely sure about -Infinity being a key when ``jsvar-encode?`` is true. See #1189, this might solve it but we need more stress testing it.
tools.gc-decode: fix for 32-bit.
tools.gc-decode: fix for 64-bit.