fix(package): update moment to version 2.18.1

Closes #2098 https://greenkeeper.io/
2017-03-22 01:54:38 +00:00 · 2017-03-22 01:54:38 +00:00 · 10f0376982
--- a/package.json
+++ b/package.json
@ -188,7 +188,7 @@
    "isomorphic-fetch": "2.2.1",
    "jed": "1.1.1",
    "jsdom": "9.11.0",
-    "moment": "2.17.1",
+    "moment": "2.18.1",
    "mozilla-tabzilla": "0.5.1",
    "mozilla-version-comparator": "1.0.2",
    "normalize.css": "5.0.0",