update vendor & fix upload file url & fix judge file type

vendor/github.com/gin-gonic/contrib/README.md

@@ -35,3 +35,4 @@ Each author is responsible of maintaining his own code, although if you submit a
 + [static](https://github.com/hyperboloide/static) An alternative static assets handler for the gin framework.
 + [xss-mw](https://github.com/dvwright/xss-mw) - XssMw is a middleware designed to "auto remove XSS" from user submitted input
 + [gin-helmet](https://github.com/danielkov/gin-helmet) - Collection of simple security middleware.
++ [gin-jwt-session](https://github.com/ScottHuangZL/gin-jwt-session) - middleware to provide JWT/Session/Flashes, easy to use while also provide options for adjust if necessary. Provide sample too.

vendor/github.com/gin-gonic/contrib/ginrus/ginrus.go

@@ -10,6 +10,10 @@ import (
 	"github.com/sirupsen/logrus"
 )
 
+type loggerEntryWithFields interface {
+	WithFields(fields logrus.Fields) *logrus.Entry
+}
+
 // Ginrus returns a gin.HandlerFunc (middleware) that logs requests using logrus.
 //
 // Requests with errors are logged using logrus.Error().
@@ -18,7 +22,7 @@ import (
 // It receives:
 //   1. A time package format string (e.g. time.RFC3339).
 //   2. A boolean stating whether to use UTC time zone or local.
-func Ginrus(logger *logrus.Logger, timeFormat string, utc bool) gin.HandlerFunc {
+func Ginrus(logger loggerEntryWithFields, timeFormat string, utc bool) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		start := time.Now()
 		// some evil middlewares modify this values