Fail to change idl files for getFiles refactoring

[Stephan Bergmann]

On 08/05/2015 06:40 PM, julien2412 wrote:
> I added [API CHANGE] but there's nothing in udkapi/type_reference/udkapi.idl
> concerning XFilePicker or XFilePicker2.

ah, sorry, in my previous response I'd missed that you'd already 
addressed changing offapi/type_reference/offapi.idl, just made a mistake 
there and claimed XFilePicker2 is derived from XInterface while in fact 
it is derived from XFilePicker

(and yes, css.ui.dialog is part of offapi, not udkapi, so no need to 
touch udkapi)