Monday I spent a few hours at a statewide summit on a subject that seemed a little, well, for lack of a better word, frivolous, given some of the clear and present problems our country — and by extension — our cities and towns are facing. The subject: Healthy Communities Summit. I have to admit, though, by summit’s end, I was much more of a believer. Mayors and civic leaders from towns and cities across Massachusetts where there. I was a little disappointed not to find any representatives from Worcester there (interestingly …