MILAN (Reuters) – Napoli boosted their chances of qualifying for their second successive Champions League campaign with a comfortable 2-0 win over travel-shy Palermo on Tuesday. Walter Mazzarri's side needed only 35 minutes to effectively wrap up the match against a team with one of the worst Serie A away records as Edinson Cavani, with a penalty, and Marek Hamsik scored. Napoli, in third place …