the API / Customer / GETLIST endpoint return does not contain Customer Fields.

with the API as of right now (8/11/2016) if i want to get custom fields for my Customers, i must:

1) get a list of all customers
2) loop through the list and call a GET on each individual Customer

this requires alot of API calls and will quickly use up all of our API credits.

this is a really big concern with the API call limits.