notify stream send task when receiving EOF (#178)

* notify stream send task when receiving EOF

* record a conn_error on eof so client can see it

* fix stream id overflow test

src/proto/streams/recv.rs

@@ -499,6 +499,7 @@ impl Recv {
 
     pub fn recv_eof(&mut self, stream: &mut Stream) {
         stream.state.recv_eof();
+        stream.notify_send();
         stream.notify_recv();
     }