Added comments to invoice status dto
#M-429 Fixed
#M-430 Fixedd
Adds shipment status table to DatabaseSchemaCreation
Local test changes.
Merge remote-tracking branch 'merchello/1.5.0' into 1.5.0
Adds default ShipmentStatus data.
[WIP] Refactored status objects to all sub class NotifiedStatusBase and starts updating shipment.  Build is still broken.
Finishes up integration of ShipmentStatus and tests.
Completes initial shipment status refactor.
Merge pull request #927 from rustyswayne/1.5.0

Introduces shipment statuses