Merge pull request #226 from alisd23/master

Fix markdown by making properties enumerable

Author: jonschlinkert

lib/markdown.js

@@ -28,6 +28,7 @@ var md;
 
 Object.defineProperty(helpers, 'markdown', {
   configurable: true,
+  enumerable: true,
   set: function(val) {
     markdown = val;
   },
@@ -53,6 +54,7 @@ Object.defineProperty(helpers, 'markdown', {
 
 Object.defineProperty(helpers, 'md', {
   configurable: true,
+  enumerable: true,
   set: function(val) {
     md = val;
   },