temp migration to remove invalid due dates since npmjs is down

migrations/20131104_remove_invalid_dues.js

@@ -0,0 +1,7 @@
+db.users.find({},{todos:1}).forEach(function(user){
+  _.each(user.todos, function(task){
+    if (moment(task.date).toDate() == 'Invalid Date')
+      task.date = moment().format('MM/DD/YYYY');
+  })
+  db.users.update({_id:user._id}, {$set:{todos: user.todos}});
+});