Fixes outstanding failing tests

[Dunedan]

Fixes three failing tests.

For test_ipinfo_ResolutionFail it fixes the following issues:

• failing when no network is available
• failing when Google changes the ip addresses of the service
• failing when the order of returned ip addresses is different

For test_DeleteRecordInitial_Empty and test_DeleteRecordInitial it fixes a not existing BindServer object.

[Dunedan]

I also had to remove the expected exception text for test_BindServerMissingStatisticsPort as it differs in different environments.