Add _sprintf() to Thread.Mutex() that prints current locking thread. Switch to
hex-based thread IDs in _sprintf() for Thread.Thread() for easier reading.
Documentation fixes. No need to push 0 on void functions.
Major redesign of the refdoc. Also removed some obsolete stuff.
Query: timed_async_fetch() didn't support chunked transfer encoding.
Promise: Some pikedoc fixes.
Crypto.NTLM: Added some primitives from [MS-NLMP].
Crypto.None: Added the plaintext algorithm.