Save settings on restart

[Trefex]

Do you think you could add an option to save the settings between restart?

[Trefex]

@jeantil I found a way to do this, but the code is under MIT license.

Would you accept a PR that would include the MIT license for the parts explicitly marked in the code?

Thanks,

[jeantil]

I'm on vacation right now. I'll be back next week and have a look at all this.

Thanks for proposing a PR :)