The last time the Portland Trail Blazers managed a winning month was November 2004. At least, it was. Brandon Roy helped Portland to its eighth straight win with 24 points and eight assists in the Trail Blazers’ 88-76 win over the New Orleans Hornets on Monday night. “When you’ve won seven in a row you start to believe you can win every game,” said Roy, who was 10-of-17 from the field and made key…