OAKLAND, Calif. — The defeat couldn’t have been more thorough. The Astros had no answer for Oakland Athletics rookie righthander Sonny Gray. And lefthander Erik Bedard couldn’t figure out a way to stop Nate Freiman. But despite being dominated in a 5-0 loss to the A’s, the Astros left O.co Coliseum on Thursday feeling good about themselves. Most of manager Bo Porter’s players walked out of the visiting clubhouse wearing jeans, earning the casual travel day because they had finally won a series for the first time in almost two months. “To take two of three from a team that’s contending for the playoffs is good for us,” catcher Carlos [...]