Update `.jshintrc to support ES6

tocker · web-flow · commit 04297d72d582 · 2019-03-12T17:13:37.000+02:00
diff --git a/.jshintrc b/.jshintrc
@@ -1,5 +1,5 @@
 {
-  "es3": true,
+  "esversion": 6,
   "indent": 2,
   "eqnull": true,
   "loopfunc": true
