GUI and menu updates

• Show dialog box when removing shipment and shipment item.
• Added search for shipments.
• Added menu strip and about form.
• Shipment file is selectable.
• GUI layout changes.

Save and selection improvements

• Improved shipment selection actions.
• Added New button for shipment and shipment items.
• Improved shipment and shipment items save actions.
• Fixed bug with new line in comment field.

Feature expansion

• Added days since departure to shipments not received or missing.
• Improved user input validation.
• Added information to shipment details; value and URL.
• Added carrier and tracking information with link to shipment tracking.
• Improved window resizing behaviour.

Initial release

Initial release.