Updated documentation.

Updated errorslist.html documentation.

Added Tip, Shipping, Discount, OrderID, Subtotal and NonTaxable properties.

Added ResponseVPASCode and ResponseErrorCode response properties.

Added next option to the RecurringStartDate property.

Updated wodhttp.dll component to 1.3.8.

Added Access and VB.NET control and component examples.

Updated all examples to reflect new response properties.

Updated and tested new installation.

8 hours of programming at $40/hour

