Add intercept for writes to special OS applications
- Rather than use a single tasking error box in the Filer on attempting to copy over one of the hidden apps, go multi tasking and pause the action awaiting user response.
- Abort abandons the whole op, Skip skips just that directory (if part of a multi object selection), Retry goes again (so you can unhide things on-the-fly).
- Also fix a tokenisation problem with the
ERxmessage strings.