Fixing DNS unit tests.
Fixing DNS unit tests.

The mock dictionary that was being created did not properly represent the data being returned by the API. I suspect this was the cause of the invalid key error that this branch was created to fix.

nanjj/softlayer-python,iftekeriba/softlayer-python,Neetuj/softlayer-python,briancline/softlayer-python,skraghu/softlayer-python,underscorephil/softlayer-python,kyubifire/softlayer-python,cloudify-cosmo/softlayer-python,softlayer/softlayer-python,allmightyspiff/softlayer-python