fog/fog — pull request #2163 by DavidWittman (2013-09-21 03:36:17+00:00)
Title: [rackspace] Don't parse JSON in delete_server response

The Rackspace API replies with an empty response to delete_server
requests, but includes a header enforcing the application/json
content-type.

This commit disables JSON parsing on `delete_server` requests,
which prevents the appearance of these warnings:

> [WARNING] Error Parsing response json - 781: unexpected token at ''