Updated CDN to test for known-broken CDN behavior.
Updated CDN to test for known-broken CDN behavior.

The issue is with SOS, and is supposed to be moving into production
soon, so these tests should pass in the next few days.

programster/openstack-sdk-php,gokuai/gokuai-swift,hurongsheng/gokuai-swift,ktroach/openstack-sdk-php,hpcloud/HPCloud-PHP