THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
API: createPrivateGateway API. Allow more than one private gateway per Vpc - remove the restriction blocking this behavior in VpcManagerImpl. No back-end changes required.
UI: Add support for configuring more than 1 private gateway per VPC as well as configuring static routes for each of the gateways.
QA: Test support for more than one Private gateway (tests should cover static routes for multiple gateways). The number is limited by the hypervisor (max number of nics supported).