upgrade moment

package.json

@@ -32,8 +32,8 @@
     "js2xmlparser": "~0.1.2",
     "lodash": "~2.4.1",
     "method-override": "~2.2.0",
-    "moment": "~2.4.0",
     "mongoose": "~3.8.17",
+    "moment": "~2.8.3",
     "mongoose-id-autoinc": "~2013.7.14-4",
     "nconf": "*",
     "newrelic": "~1.11.2",

src/controllers/payments.js

@@ -108,7 +108,7 @@ function cancelSubscription(user, data){
   if(isProduction) emailUser(user, 'cancel-subscription');
   user.purchased.plan.dateTerminated =
     moment( now.format('MM') + '/' + moment(du).format('DD') + '/' + now.format('YYYY') )
-    .add('month',1)
+    .add(1, 'month')
     .toDate();
   ga.event('unsubscribe', 'Stripe').send();