alicloud: resource type is not supported

Hi,

i tried now too long to get it fixed.
even updating

https://github.com/GoogleCloudPlatform/PerfKitBenchmarker/blob/master/perfkitbenchmarker/providers/alicloud/ali_virtual_machine.py#L72

DEFAULT_IMAGE = "ubuntu_16_0402_64_20G_alibase_20171227.vhd",

https://github.com/GoogleCloudPlatform/PerfKitBenchmarker/blob/master/perfkitbenchmarker/providers/alicloud/ali_virtual_machine.py#L81

IMAGE_NAME_FILTER = 'ubuntu_16_0402_64_40G_alibase*'

to the latest version did not help.

any idea whats the problem here?

`./pkb.py --cloud=AliCloud --benchmarks=iperf,ping --zones=eu-central-1a`

```
2018-01-12 17:45:50,269 1c0f77fa Thread-11 iperf(1/2) INFO Ran aliyuncli ecs CreateInstance --InstanceName perfkit-1c0f77fa --RegionId eu-central-1 --ZoneId eu-central-1a --ImageId ubuntu_14_0405_64_40G_alibase_20170711.vhd --InstanceType ecs.s2.large --SecurityGroupId sg-gw81w3dek0o8yjzwdtb3 --Password GoZfscYCzD3054726918 --VpcId vpc-gw8c9uah05xo3lzk24uvx --VSwitchId vsw-gw8wb2d5ysclm7upmdbvk. Got return code (1).
STDOUT: {
"Message": "This resource type is not supported; please try other resource types.",
"Code": "InvalidResourceType.NotSupported"
}
Detail of Server Exception:

HTTP Status: 403 Error:InvalidResourceType.NotSupported This resource type is not supported; please try other resource types. RequestID: C4977D18-9F3C-4DAF-B1CA-F891A925F982
```