Added Refunds

-Added Refund Pages (not Windows)
-implemented control flow logic via Pages (seemed like a better idea to
me)
Pages Update

-Updated all Pay... Windows to be Pages
-Added control flow logic to application
Refund Update

-Added basic refunding business logic
Merge remote-tracking branch 'origin/master' into mikevman7

Conflicts:
	WpfApplication1/PayEnterPin.xaml
	WpfApplication1/PaySelectAccount.xaml
	WpfApplication1/RefundEnterTicketNum.xaml
	WpfApplication1/RefundEnterTicketNum.xaml.cs
	WpfApplication1/RefundFailure.xaml
	WpfApplication1/RefundFailure.xaml.cs
	WpfApplication1/RefundSuccess.xaml
	WpfApplication1/RefundSuccess.xaml.cs
-Updated minor bugs with Refunds logic
Merge branch 'master' of https://github.com/FadyMak/WalkInThePark