DHAKA, Bangladesh — Bangladesh forces stormed a restaurant where heavily armed militants held dozens of people hostage for 10 hours Saturday morning, triggering explosions and finding at least five bodies lying in pools of blood. Japan's government said that 12 people were rescued.The Islamic State group claimed responsibility for the attack on the Holey Artisan Bakery in Dhaka's Gulshan area, according to the SITE Intelligence Group, which monitors jihadis activity online.