By Soo-hyang Choi and Hyonhee Shin SEOUL (Reuters) -South Korea moved to calm public outrage on Tuesday over a Halloween party crush that killed more than 150 people, most of them young, promising a speedy and intensive inquiry and calling for tough new safety measures to prevent similar disasters. The death toll from the crush at a crowded Halloween street party on Saturday climbed to 156 with 151 injured, 29 of whom were in serious condition. At least 26 citizens from 14 countries were among the dead. Tens of thousands of revellers – many in their teens and twenties and dressed in costume – …