Added Application.js wrapper and viewport meta tag

src/scenes/Application.js

@@ -0,0 +1,22 @@
+import React from "react";
+import Helmet from "react-helmet";
+
+const Application = (props) => {
+  return (
+    <div style={{ width: '100%' }}>
+      <Helmet
+        title="Beautiful Atlas"
+        meta={[
+          {"name": "viewport", "content": "width=device-width, initial-scale=1.0"},
+        ]}
+      />
+      { props.children }
+    </div>
+  );
+};
+
+Application.propTypes = {
+  children: React.PropTypes.node.isRequired,
+}
+
+export default Application;