Araq/Nimrod — pull request #1769 by cowboy-coders (2014-12-22 20:43:06+00:00)
Title: Asynchttp client fix: close socket after calling ssl_shutdown

This is an extension to dom96's recent fix in e6245674f24616ab940dee79883c6b18ac182d2e (thanks by the way). The following snippet was still failing as the socket was being closed too early:

```nimrod
import httpclient
import asyncnet, asyncdispatch
import os

proc main() {.async.} =
var client = newAsyncHttpClient()

var resp = await client.request("https://cowboycoders.org")
echo("Got response: ", resp.status)

resp = await client.request("https://github.com/")
echo("Got response: ", resp.status)

waitFor main()

```
I also reworked the SSL error to Exception mapping (I hope this ok).