Update vendored gotapdance

vendor/github.com/refraction-networking/gotapdance/README.md

@@ -4,9 +4,9 @@
 
 <p align="center">TapDance is a free-to-use anti-censorship technology, protected from enumeration attacks.</p>
 <p align="center">
-<a href="https://travis-ci.org/sergeyfrolov/gotapdance"><img src="https://travis-ci.org/sergeyfrolov/gotapdance.svg?branch=master"></a>
-<a href="https://godoc.org/github.com/sergeyfrolov/gotapdance/tapdance"><img src="https://img.shields.io/badge/godoc-reference-blue.svg"></a>
-	<a href="https://goreportcard.com/report/github.com/sergeyfrolov/gotapdance"><img src="https://goreportcard.com/badge/github.com/sergeyfrolov/gotapdance"></a>
+<a href="https://travis-ci.org/refraction-networking/gotapdance"><img src="https://travis-ci.org/refraction-networking/gotapdance.svg?branch=master"></a>
+<a href="https://godoc.org/github.com/refraction-networking/gotapdance/tapdance"><img src="https://img.shields.io/badge/godoc-reference-blue.svg"></a>
+	<a href="https://goreportcard.com/report/github.com/refraction-networking/gotapdance"><img src="https://goreportcard.com/badge/github.com/refraction-networking/gotapdance"></a>
 </p>
 
 # Build
@@ -16,7 +16,7 @@
 1. Get source code for Go TapDance and all dependencies:
 
  ```bash
-go get -d -u -t github.com/sergeyfrolov/gotapdance/...
+go get -d -u -t github.com/refraction-networking/gotapdance/...
 ```
 Ignore the "no buildable Go source files" warning.
 
@@ -36,7 +36,7 @@ If you have outdated versions of libraries used, you might want to do `go get -u
 package main
 
 import (
-	"github.com/sergeyfrolov/gotapdance/tapdance"
+	"github.com/refraction-networking/gotapdance/tapdance"
 	"fmt"
 )
 

vendor/github.com/refraction-networking/gotapdance/protobuf/README.md

@@ -1,5 +1,5 @@
 # Protobuf messages for TapDance
-[![godoc](https://img.shields.io/badge/godoc-reference-blue.svg)](https://godoc.org/github.com/sergeyfrolov/gotapdance/protobuf)
+[![godoc](https://img.shields.io/badge/godoc-reference-blue.svg)](https://godoc.org/github.com/refraction-networking/gotapdance/protobuf)
 ---
 
 ### Rebuild

vendor/github.com/refraction-networking/gotapdance/tapdance/conn_flow.go

@@ -18,8 +18,8 @@ import (
 	"time"
 
 	"github.com/golang/protobuf/proto"
-	pb "github.com/refraction-networking/gotapdance/protobuf"
 	"github.com/sergeyfrolov/bsbuffer"
+	pb "github.com/refraction-networking/gotapdance/protobuf"
 )
 
 // TapdanceFlowConn represents single TapDance flow.
@@ -105,11 +105,11 @@ func (flowConn *TapdanceFlowConn) DialContext(ctx context.Context) error {
 	case flowUpload:
 		fallthrough
 	case flowBidirectional:
-		go flowConn.spawnReaderEngine()
 		flowConn.reconnectSuccess = make(chan bool, 1)
 		flowConn.reconnectStarted = make(chan struct{})
 		flowConn.writeSliceChan = make(chan []byte)
 		flowConn.writeResultChan = make(chan ioOpResult)
+		go flowConn.spawnReaderEngine()
 		go flowConn.spawnWriterEngine()
 		return nil
 	case flowReadOnly:

vendor/vendor.json

@@ -482,22 +482,22 @@
 			"tree": true
 		},
 		{
-			"checksumSHA1": "ZZTPdAqg8gqXyRc0MHQsZAI/S1o=",
+			"checksumSHA1": "5rmH4D67rsb/VWRvD4bjmRO40uA=",
 			"path": "github.com/refraction-networking/gotapdance",
-			"revision": "4d84655dad2e242b0af0459c31f687b12085dcca",
-			"revisionTime": "2019-09-06T18:47:05Z"
+			"revision": "3a6e1938ad70af3e91081cd036e3ed05995d67e7",
+			"revisionTime": "2019-09-09T20:29:46Z"
 		},
 		{
-			"checksumSHA1": "Owt8RxloT1XD/WUE2Ih1JX5+KTc=",
+			"checksumSHA1": "kt4nwBTlAIn0dET5SqLdWXLLuso=",
 			"path": "github.com/refraction-networking/gotapdance/protobuf",
-			"revision": "4d84655dad2e242b0af0459c31f687b12085dcca",
-			"revisionTime": "2019-09-06T18:47:05Z"
+			"revision": "3a6e1938ad70af3e91081cd036e3ed05995d67e7",
+			"revisionTime": "2019-09-09T20:29:46Z"
 		},
 		{
-			"checksumSHA1": "fCJyFbCVKmJ4PlNUrfFcDGcSs2I=",
+			"checksumSHA1": "vcO0kZzwAtxZ0Jk2nhrPdE16myI=",
 			"path": "github.com/refraction-networking/gotapdance/tapdance",
-			"revision": "4d84655dad2e242b0af0459c31f687b12085dcca",
-			"revisionTime": "2019-09-06T18:47:05Z"
+			"revision": "3a6e1938ad70af3e91081cd036e3ed05995d67e7",
+			"revisionTime": "2019-09-09T20:29:46Z"
 		},
 		{
 			"checksumSHA1": "S5FV5qBbMksx0vxajWD94J2KeHw=",