WinFormsExampleUpdates

Updates to make TechNet PowerShell Windows Forms examples compatible with PowerShell 3.0 and later

Original example URLs:

• http://technet.microsoft.com/en-us/library/ff730941.aspx - Custom Input Box
• http://technet.microsoft.com/en-us/library/ff730949.aspx - List Box
• http://technet.microsoft.com/en-us/library/ff730950.aspx - Multi-Select List Box
• http://technet.microsoft.com/en-us/library/ff730942.aspx - Date Time picker