CIT275DevGroup/openTill — pull request #13 by vanhouc (2014-02-25 01:56:24+00:00)
Title: Add GUI Backend for Transactions

This branch adds:
A viewmodel for MainWindow,
An IProductService interface to wrap openTill.Domain.Services.ProductService
A TransactionItem class to wrap openTill.Domain.Product with neccessary properties
An ObservableObject class to wrap INotifyPropertyChanged interface