The Terraform configuration syntax defines what arrays are.
Use the word array consistently throughout the documentation
instead of list.
The corresponding JSON datatype is called array as well, and
since the Terraform configuration syntax is interoperable with
JSON it makes sense to use the term array to describe them.
Update the Google Compute Engine provider to add support for service
accounts on `google_compute_instance`. Both gcloud shorthand (`compute-ro`,
`storage-ro`, etc.) and OAuth2 API endpoints are supported.
This feature is currently limited to a single service account (supporting
multiple scopes) and an automatically-generated service account email.
Supports configuring the disk type for Google Compute Engine disk
resources. Both `google_compute_disk` and `google_compute_instance`
disk types are supported.
Resolves#351.
