Import Promise from RSVP

Import Promise from RSVP

diff --git a/assets/javascripts/lib/discourse.js.es6 b/assets/javascripts/lib/discourse.js.es6
index 6850b74..7492286 100644
--- a/assets/javascripts/lib/discourse.js.es6
+++ b/assets/javascripts/lib/discourse.js.es6
@@ -1,4 +1,5 @@
 import { ajax } from "discourse/lib/ajax";
+import { Promise } from "rsvp";
 import {
   DB_NAME,
   DB_VERSION,

GitHub sha: 756582c0