Introduce blog

Summary:Ported the infrastructure from jest.

![screen shot 2016-03-24 at 9 47 50 am](https://cloud.githubusercontent.com/assets/197597/14024237/85db1132-f1a5-11e5-84be-f525e302c6ca.png)
Closes https://github.com/facebook/react-native/pull/6629

Differential Revision: D3094423

Pulled By: vjeux

fb-gh-sync-id: a01aec6a55d28484c45bb241d037ca6717bc5e81
shipit-source-id: a01aec6a55d28484c45bb241d037ca6717bc5e81

website/layout/BlogPostLayout.js

@@ -0,0 +1,39 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule BlogPostLayout
+ */
+
+'use strict';
+
+var BlogPost = require('BlogPost');
+var BlogSidebar = require('BlogSidebar');
+var Marked = require('Marked');
+var MetadataBlog = require('MetadataBlog');
+var React = require('React');
+var Site = require('Site');
+
+var BlogPostLayout = React.createClass({
+  render: function() {
+    return (
+      <Site
+        section="blog"
+        title={this.props.metadata.title}
+        description={this.props.children.trim().split('\n')[0]}>
+        <section className="content wrap documentationContent">
+          <BlogSidebar title={this.props.metadata.title} />
+          <div className="inner-content">
+            <BlogPost post={this.props.metadata} content={this.props.children} />
+          </div>
+        </section>
+      </Site>
+    );
+  }
+});
+
+module.exports = BlogPostLayout;