Delaware gas prices held steady over the weekend and only dropped a penny in the past week.   Prices at the pump had been expected to continue falling through the Thanksgiving holiday, but the trend seems to have stagnated.  Delaware's average for a gallon of gas now stands at $3.44.  That's higher than the national average of $3.42.  AAA Mid Atlantic says lingering affects from Hurricane Sandy are to blame for the prices not retreating further than they already have.