stack-checker: more use of hash-sets.
misc/vim: highlight numbers with leading "+" (e.g., "+12").
math.hashcodes: consistent number hashing.
math.hashcodes: better tests.
io.encodings: speed up ascii and utf8 stream-read-until.
csv: cleanup some of the words a bit.
sequences.shifted: adding a virtual shifted sequence.
infix: adding slice step notation.
math.hashcodes: try and fix tests on 32-bit.
calendar: Add more utility words for date abbrevations.
zoneinfo: Working on parsing raw rules.
infix: fixing issue with confusing negative steps.
calendar: fix bootstrap problem.
math.hashcodes: better test-case.
zoneinfo: fix for calendar renaming.
locals.parser: check for valid locals names.
compiler.cfg.intrinsics: intrinsics on inline words are not supported.
typed: prevent TYPED: definitions without types.
typed: Add unit test for #778.
math.hashcodes: fix complex number-hashcodes.