What's new/fixed:
- X2 4981 support (dropped X2 4980 support).
- Fix: possible crash when using a limited user account.
- Fix: temporary file "foo3.img" written to C: (feel free to delete this file if you have it).
- bfm_remainder.img no longer required or used for BFM conversion.

- Slightly improved documentation.
- Some display text changes.