Clang-format of changed files

Now calling tcp_shutdown will in fact close the socket, which cascades into properly cleaning out all the pending requests.
The tcp_server_windows's shutdown logic had to be rewritted (simplified) in order to take this into account.

This code branches out of the alpha/early_adopter code and begins
building toward the beta API.

Tests not yet included.

Conflicts:
	src/python/src/setup.py