WIP: get http load test into better (but bad) state

Is now able to maintain correspondence with aquatic_http
and opentracker

aquatic_http/src/lib/network/connection.rs

@@ -45,6 +45,17 @@ impl EstablishedConnection {
         }
     }
 
+    pub fn shutdown(&mut self){
+        match self.stream {
+            Stream::TcpStream(ref mut s) => {
+                s.shutdown(::std::net::Shutdown::Both);
+            },
+            Stream::TlsStream(ref mut s) => {
+                s.shutdown();
+            },
+        }
+    }
+
     pub fn read_request(&mut self) -> Result<Request, RequestReadError> {
         if (self.buf.len() - self.bytes_read < 512) & (self.buf.len() <= 3072){
             self.buf.extend_from_slice(&[0; 1024]);