No added or removed elements or attributes.
Changes were made to Validation.
Removed "<xs:unique" "<xs:pattern" validation for performance.
Those validations have been recently implemented in the Limelight
Importer so they were be removed here.
The Limelight Importer currently uses this XSD for validation of the
file to import.
The Limelight Importer previously executed slowly when validation using
"<xs:unique" and "<xs:pattern", especially for large files.