json: better support for escaped strings.
json: cleanup and add more parameters for writing.
json: rename to json-coerce.
z-algorithm: slightly faster by allocating and using an array.
json: rename json-allow-nans? to json-allow-fp-special?.
calendar.format: use format-float more.
extra: using "swap index".
math.parser: remove float>string, speedup format-float.
math.parser: whoops, this part shouldn't have been committed.
math.parser: simplify store-exponent.
logging.server: use locals to make write-message more clear.
logging: make log-root docs more explicit.
math.binpack: make binpacking much faster by caching total weight per bin.
math.binpack: cleanup using.
core: use if* in a couple places.
classes.tuple: use slots>tuple when possible.
match: rename ?1-tail to ?rest.
unmaintained: this should be tags.txt not tags.factor.
removing small and unnecessary files.
vm: Annotate more places where we can gc.
Code formatting fix.