Merge pull request #32 from ilatif/master

Removed env from redirect and changed redirect from method to macro.

src/kemal/context.cr

@@ -22,11 +22,6 @@ class Kemal::Context
     @response.content_type
   end
 
-  def redirect(url)
-    @response.headers.add "Location", url
-    @response.status_code = 301
-  end
-
   delegate headers, @request
   delegate status_code, @response
   delegate :"status_code=", @response

src/kemal/macros.cr

@@ -0,0 +1,4 @@
+macro redirect(url)
+  env.response.headers.add "Location", {{url}}
+  env.response.status_code = 301
+end