Fix http: superfluous response.write header call (#11)

* Remove version

* Write status before content

Author: unknwon

captcha.go

@@ -28,12 +28,6 @@ import (
 	"gopkg.in/macaron.v1"
 )
 
-const _VERSION = "0.1.0"
-
-func Version() string {
-	return _VERSION
-}
-
 var (
 	defaultChars = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
 )
@@ -242,10 +236,10 @@ func Captchaer(options ...Options) macaron.Handler {
 				}
 			}
 
+			ctx.Status(200)
 			if _, err := NewImage([]byte(chars), cpt.StdWidth, cpt.StdHeight, cpt.ColorPalette).WriteTo(ctx.Resp); err != nil {
 				panic(fmt.Errorf("write captcha: %v", err))
 			}
-			ctx.Status(200)
 			return
 		}
 

captcha_test.go

@@ -24,12 +24,6 @@ import (
 	"gopkg.in/macaron.v1"
 )
 
-func Test_Version(t *testing.T) {
-	Convey("Get version", t, func() {
-		So(Version(), ShouldEqual, _VERSION)
-	})
-}
-
 func Test_Captcha(t *testing.T) {
 	Convey("Captch service", t, func() {
 		m := macaron.New()