Handle ranges in large lists requests

[PierreKieffer]

ERROR : GetApps : status code 206

List requests will return a Content-Range header indicating the range of values returned. Large lists may require additional requests to retrieve. If a list response has been truncated you will receive a 206 Partial Content status and the Next-Range header set. To retrieve the next range, repeat the request with the Range header set to the value of the previous request’s Next-Range header.

https://devcenter.heroku.com/articles/platform-api-reference#ranges