Add dynamodb_table and deprecation notice on lock_table. Add missing
parameters for the S3 backends: assume_role_policy, external_id,
and session_name.
* The resource name should be consistent.
The HCL declares the terraform_remote_state with a resource name of foo. But the example invocation uses network which is incorrect.
* Foo > Network so this is a proper example.
This augments backend-config to also accept key=value pairs.
This should make Terraform easier to script rather than having to
generate a JSON file.
You must still specify the backend type as a minimal amount in
configurations, example:
```
terraform { backend "consul" {} }
```
This is required because Terraform needs to be able to detect the
_absense_ of that value for unsetting, if that is necessary at some
point.
This adds a "lock" config (default true) to allow users to optionally
disable state locking with Consul. This is necessary if the token given
doesn't have session permission and is necessary for backwards
compatibility.
James Bardin