Comment 3 for bug 885265

Ok, let's make sure that QuantumManager properly handles different types of errors that may be returned by Quantum, and that such errors result in reasonable error messages and leave the VM in a the correct state. I believe our current plan is to consider the build of a VM failed if we cannot attach it to the network.

My understanding is that it is perfectly valid for a service like Quantum to define its own error codes within the 4XX range, so I don't think that is the fundamental problem. Its really just that I should have done a better job of error handling :)