WinUAE 2.1.0 Beta 23

Beta 23: (RC1, max 1 week left for possible bug reports)

Originally Posted by :
* SPS library return code check added, show notification if selected image requires newer library version
* Quickstart DF1: and CD localization fix
* beta warnings disabled

Finally close to a final release of 2.1.0? This has been a lot of betas.