RSS/ATOM Feed added, Prism changes, and global Copyright notice. (#94)

* Add Reason support to Prism.js

* Add XML/ATOM feed. Generates for both localhost and build script. Adds meta links to feeds to all html files.

* Updated /core/Footer.js to pull from siteConfig

lib/generate-feed.js

@@ -0,0 +1,33 @@
+#!/usr/bin/env node
+
+/**
+ * Copyright (c) 2017-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.
+ */
+
+require("babel-register")({
+	babelrc: false,
+	only: [__dirname, process.cwd() + "/core"],
+	plugins: [require("./server/translate-plugin.js")],
+	presets: ["react", "latest"]
+});
+
+// initial check that required files are present
+const chalk = require("chalk");
+const fs = require("fs");
+const CWD = process.cwd();
+
+if (!fs.existsSync(CWD + "/siteConfig.js")) {
+	console.error(
+		chalk.red("Error: No siteConfig.js file found in website folder!")
+	);
+	process.exit(1);
+}
+
+// generate rss feed
+const feed = require("./server/feed.js");
+console.log(feed());