fog/fog — pull request #2169 by krames (2013-09-24 15:33:24+00:00)
Title: [rackspace] updating to only parse json if the body of the response has data 

We are still seeing issues like https://github.com/fog/fog/pull/2163, which seems to occur with some json parsers. This PR update's the Rackspace provider to only attempt to parse a response if it contains data.