Incorrect engine option was used for CLI
Incorrect engine option was used for CLI

CLI used an engine setting with wrong name. As a result
sets that were produced by queries were not converted to
lists and could not serialize to JSON. Because CLI uses
JSON serialization to display output an error message
was shown instead.

Change-Id: I4cf2714ca61f89d85ea3c7868f13e8d60df4eef2
Closes-Bug: #1534947

openstack/yaql,stackforge/yaql