Update WorldCart.edmx
Update WorldCart.edmx

Squashed commit of the following:

commit f1ecfbd5f90c4847e85936326242ae40f3e32aa9
Author: jackvsworld <ajbarton@users.sf.net>
Date:   Fri May 8 16:52:04 2015 -0700

    Update WorldCart.edmx

    Update EF data model

WorldCommerce/WorldCart,WorldCommerce/WorldCart