Version 8.6.2

Magic (main)

Rewritten (yet another time!) the logic of cryptographically signed
HTTP invocations, after getting advice from the Redditers at /r/cryptography.

magic.lambda

Fixed a severe error in [return] and [return-nodes] that would
sometimes return nothing, even though it should, due to that the results
of expressions evaluated was not cloned while returning nodes.

magic.lambda.caching

Made sure we clone the node we return if we're supposed to return an
entire node, to avoid having caller modify the cache unintentionally.

magic.library

Made sure we return the correct HTTP status code when a public Hyperlambda
exception is thrown.