Added Vat Number Field for Checkout Process
changed vatno to vatid and VatNo to VatID
changed Vat Number to Vat ID

added setup tasks
fixed setup task class name
added setup task PreDependencies
added VatID bind
removed equal strings from DefaultTest
changed the PreDependencies to SubjectToCustomerSupplier
Merge pull request #707 from michaelschwaiger/master

Added Vat ID field to addresses for business customers