removed ASP.NET MVC 2 GUID (F85E285D-A4E0-4152-9332-AB1D724D3325), so that i could be opened in VS 2012

automatically upgraded .sln to VS 2012
see http://stackoverflow.com/questions/13424079/how-do-i-open-an-mvc-2-project-in-visual-studio-2012/13424080
upgraded .sln to VS 2012