
In tests, saucy has been able to match raring for the ability to bring up clouds, so we can roll forwards and switch the default to saucy. Change-Id: I4df35d40f902c0daa7b2761d7afea8db25526753
Use Ubuntu cloud images as the baseline for built disk images.
Overrides:
- To use a non-default URL for downloading base Ubuntu cloud images, use the environment variable DIB_CLOUD_IMAGES
- To download a non-default release of Ubuntu cloud images, use the environment variable DIB_RELEASE