version-3.53.3
In fiddle, remove the default .dot-commands it runs, as they do not reflect current shell defaults.
Remove some stale makefile comments. Add a little widget to fiddle's toolbar which shows whether it's running in 32- or 64-bit mode. Reduce fiddle's starting memory to 8MB.
Upgrade ext/wasm/c-pp-lite.c to its newer sibling because we've reached the older one's limits. This renames c-pp-lite.c to libcmpp.c to maintain both the SCM- and code lineage but that may end up looking a bit weird because the diff between the two is vast.