resource
We had a line on the Update func that said:
```
Hash key can only be specified at creation, you cannot modify it.
```
The resource has now been changed to ForceNew on the hashkey
```
aws_dynamodb_table.demo-user-table: Refreshing state... (ID: Users)
aws_dynamodb_table.demo-user-table: Destroying...
aws_dynamodb_table.demo-user-table: Destruction complete
aws_dynamodb_table.demo-user-table: Creating...
aws_dynamodb_table.demo-user-table: Creation complete
```
Change the `RetryFunc` from a plain `error` return type to a
specialized `RetryError` which must decide whether it is
retryable or not.
Add `RetryableError` / `NonRetryableError` factory functions that
callers are meant to use to build up these errors.
This makes it eminently clear whether or not a given error is
retryable from inside the client code.
Goal here is to _not_ change any behavior, simply reflect the
existing behavior with the new, clearer, API.
This commit exports the `arn` as well as the `id`, since IAM
roles require the full resource name rather than just the table
name. I'd even be in favor or having `arn` as the `id` since the
<region, tablename> pair is the uniqueness constraint, but this
will keep backwards compatibility:
http://docs.aws.amazon.com/amazondynamodb/latest/APIReference/API_CreateTable.html