Merge branch 'master' of github.com:gophergala2016/source

Author: gotokatsuya

core/foundation/context.go

@@ -50,6 +50,7 @@ type (
 	Render interface {
 		HTML(int, string, interface{})
 		JSON(int, interface{})
+		Redirect(int, string)
 	}
 
 	Request interface {
@@ -201,6 +202,11 @@ func (c *FoundationContext) JSON(code int, obj interface{}) {
 	c.opt.JSON(code, obj)
 }
 
+// Redirect returns a HTTP redirect to the specific location.
+func (c *FoundationContext) Redirect(code int, location string) {
+	c.opt.Redirect(code, location)
+}
+
 ////////////////////////////////////////
 /// Request interface
 ////////////////////////////////////////