Kelly Jones is a changed man. And it shows in his personal demeanour, and in the music he has been making with Stereophonics. “Part of me doesn’t really give a **** anymore,” he confesses. “The stage I am at now is very close to how I was at 21. I’ve learned how to deal with the ups and downs of being in a band, people liking you, people not liking you, how you look on a magazine cover, how…