implement ReadQuery with 'url' struct field tag name strictly, as requested at: #1207

Former-commit-id: dc0c237f62aa6db5a0c1755b2074d8a18dba0d8f

_examples/http_request/read-query/main.go

@@ -0,0 +1,29 @@
+// package main contains an example on how to use the ReadForm, but with the same way you can do the ReadJSON & ReadJSON
+package main
+
+import (
+	"github.com/kataras/iris"
+)
+
+type MyType struct {
+	Name string `url:"name"`
+	Age  int    `url:"age"`
+}
+
+func main() {
+	app := iris.New()
+
+	app.Get("/", func(ctx iris.Context) {
+		var t MyType
+		err := ctx.ReadQuery(&t)
+		if err != nil && !iris.IsErrPath(err) {
+			ctx.StatusCode(iris.StatusInternalServerError)
+			ctx.WriteString(err.Error())
+		}
+
+		ctx.Writef("MyType: %#v", t)
+	})
+
+	// http://localhost:8080?name=iris&age=3
+	app.Run(iris.Addr(":8080"))
+}