Ensure content is application/xml and utf-8 encoded
Add sandbox support for project list
Rename class variable
Add support for loading resources from a sandbox context if a sandbox_path is present

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extra : amend_source : 511d71f43fc600b188527fc84968027ded9cd8a8
Correct classmethod
Correct attribute references
Pass the full internal id and name for customer
Log output if debug is enabled
Add support for debug logging