Release 0.7.0

Beta Release 0.7.0 including:

- Bug fixes
- Updated model/function names
- Updated models to reflect changes in APIs

doc/models/refund-status.md

@@ -9,10 +9,10 @@ The status of the refund.
 
 ## Fields
 
-| Name |
-|  --- |
-| `CANCELLED` |
-| `FAILED` |
-| `PENDING` |
-| `COMPLETED` |
+| Name | Description |
+|  --- | --- |
+| `CANCELLED` | The refund was cancelled. |
+| `FAILED` | The refund could not be processed. |
+| `PENDING` | The refund is pending. For more information, see status_details.reason. |
+| `COMPLETED` | The funds for this transaction were debited to the customer's account. |