Fixes bug where GetShipments was being called on Invoice View page when no order existed.
Merge remote-tracking branch 'merchello/1.4.0' into 1.4.0
Merge remote-tracking branch 'merchello/1.4.0' into 1.4.0
Added merchello.audit.service.js.
Merge remote-tracking branch 'merchello/1.4.0' into 1.4.0
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Merge pull request #856 from rustyswayne/1.4.0

Refactored PaymentApiController to return PaymentResultDisplay
Merge remote-tracking branch 'merchello/1.4.0' into 1.4.0
Testing AuditLog API's GetSalesHistoryByInvoiceKey endpoint.
Fixes issue with SalesHistory Serialization