Use Go1.11 module (#5743)

* Migrate to go modules

* make vendor

* Update mvdan.cc/xurls

* make vendor

* Update code.gitea.io/git

* make fmt-check

* Update github.com/go-sql-driver/mysql

* make vendor

vendor/github.com/go-macaron/csrf/.travis.yml

@@ -0,0 +1,11 @@
+sudo: false
+language: go
+go:
+  - 1.5.x
+  - 1.6.x
+  - 1.7.x
+  - 1.8.x
+  - 1.9.x
+  - 1.10.x
+
+script: go test -v -cover -race

vendor/github.com/go-macaron/csrf/README.md

@@ -0,0 +1,18 @@
+# csrf [![Build Status](https://travis-ci.org/go-macaron/csrf.svg?branch=master)](https://travis-ci.org/go-macaron/csrf) [![](http://gocover.io/_badge/github.com/go-macaron/csrf)](http://gocover.io/github.com/go-macaron/csrf)
+
+Middleware csrf generates and validates CSRF tokens for [Macaron](https://github.com/go-macaron/macaron).
+
+[API Reference](https://gowalker.org/github.com/go-macaron/csrf)
+
+### Installation
+
+	go get github.com/go-macaron/csrf
+	
+## Getting Help
+
+- [API Reference](https://gowalker.org/github.com/go-macaron/csrf)
+- [Documentation](http://go-macaron.com/docs/middlewares/csrf)
+
+## License
+
+This project is under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for the full license text.