xing/XNGAPIClient — pull request #34 by tapwork (2014-09-19 08:59:26+00:00)
Title: Fixes the cancel of job search operations

We need to nil out the completionBlock before canceling.
Per Default canceling the AFHTTPRequestOperation triggers the completionBlock with an error (which we don't want in jobs).
Therefore we CAN'T use the AFHTTPClient method: cancelAllHTTPOperationsWithMethod:path