sslutil: always use SSLContext Now that we have a fake SSLContext instance, we can unify the code paths for wrapping sockets to always use the SSLContext APIs. Because this is security code, I've retained the try..except to make the diff easier to read. It will be removed in the next patch. I took the liberty of updating the inline docs about supported protocols and how the constants work because this stuff is important and needs to be explicitly documented.