Lumber prices fell last Thursday, marking the first decline in more than a week, as mortgage rates rose to the highest since November 2008.  Prices dipped 2.3% to $598.50 per thousand board feet, after rallying for six consecutive sessions to edge back above $600.  Freddie Mac said that 30-year fixed-rate mortgages rose to 5.81% from 5.78% in the prior week.  Lumber prices fell Thursday, marking the first decline in more than a week, as mortgage rates rose to the highest level since November 2008.  Prices ticked down ...