Convert to ES5, add web server

* No compilation step
 * Beginnings of web interface
 * Simple express server; React-based frontend
 * CommonJS style across codebase; auto-converts to RequireJS for browser
 * Using diffsync for realtime UI
 * "Provider" -> "Plugin"
 * Plugins expose one or more Providers

lib/util/camelcase.js

@@ -0,0 +1,13 @@
+
+module.exports = {
+  camelCaseToRegularForm: camelCaseToRegularForm
+}
+
+// Converts "accessToken" to "Access Token"
+function camelCaseToRegularForm(camelCase) {
+  return camelCase
+    // insert a space before all caps
+    .replace(/([A-Z])/g, ' $1')
+    // uppercase the first character
+    .replace(/^./, function(str){ return str.toUpperCase(); })
+}