text: Review: Robovacs No Match for Normal Vacuum Cleaners By MARK JEWELL     BOSTON (AP) -- A new generation of robotic vacuums is ready to do battle with dirt, dust and dog hair with more cleaning power and cunning than their ancestors could muster.     Faced with the usual obstacles - furniture, stairs, low-hanging bed skirts and stray socks - they intelligently and acrobatically extricate themselves from most tight spots and largely avoid getting stuck or sucking in what they shouldn't...