Support MFA recovery tokens

Units.flitter.js

@@ -31,6 +31,7 @@ const FlitterUnits = {
      * Custom units that modify or add functionality that needs to be made
      * available to the middleware-routing-controller stack.
      */
+    'Locale'        : require('flitter-i18n/src/LocaleUnit'),
     'Redis'         : require('flitter-redis/src/RedisUnit'),
     'Jobs'          : require('flitter-jobs/src/JobsUnit'),
     'Settings'      : require('./app/unit/SettingsUnit'),