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/issue9/identicon/.gitignore

@@ -0,0 +1,32 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof
+
+#vim
+*.swp
+
+#osx
+.DS_Store
+
+testdata

vendor/github.com/issue9/identicon/.travis.yml

@@ -0,0 +1,10 @@
+language: go
+go:
+    - tip
+    - 1.6
+    - 1.5
+    - 1.4
+    - 1.3
+install:
+    - go get github.com/issue9/assert
+    - mkdir ./testdata

vendor/github.com/issue9/identicon/README.md

@@ -0,0 +1,40 @@
+identicon [![Build Status](https://travis-ci.org/issue9/identicon.svg?branch=master)](https://travis-ci.org/issue9/identicon)
+======
+
+根据用户的IP、邮箱名等任意数据为用户产生漂亮的随机头像。
+
+![screenhost.1](https://raw.github.com/issue9/identicon/master/screenshot/1.png)
+![screenhost.4](https://raw.github.com/issue9/identicon/master/screenshot/4.png)
+![screenhost.5](https://raw.github.com/issue9/identicon/master/screenshot/5.png)
+![screenhost.6](https://raw.github.com/issue9/identicon/master/screenshot/6.png)
+![screenhost.7](https://raw.github.com/issue9/identicon/master/screenshot/7.png)
+
+```go
+// 根据用户访问的IP，为其生成一张头像
+img, _ := identicon.Make(128, color.NRGBA{},color.NRGBA{}, []byte("192.168.1.1"))
+fi, _ := os.Create("/tmp/u1.png")
+png.Encode(fi, img)
+fi.Close()
+
+// 或者
+ii, _ := identicon.New(128, color.NRGBA{}, color.NRGBA{}, color.NRGBA{}, color.NRGBA{})
+img := ii.Make([]byte("192.168.1.1"))
+img = ii.Make([]byte("192.168.1.2"))
+```
+
+### 安装
+
+```shell
+go get github.com/issue9/identicon
+```
+
+
+### 文档
+
+[![Go Walker](http://gowalker.org/api/v1/badge)](http://gowalker.org/github.com/issue9/identicon)
+[![GoDoc](https://godoc.org/github.com/issue9/identicon?status.svg)](https://godoc.org/github.com/issue9/identicon)
+
+
+### 版权
+
+本项目采用[MIT](http://opensource.org/licenses/MIT)开源授权许可证，完整的授权说明可在[LICENSE](LICENSE)文件中找到。