Canadian apparel maker Gildan Activewear said Thursday its board of directors has resigned and its CEO Vince Tyra has stepped down to be replaced by former top boss Glenn Chamandy.The company’s US-listed shares rose more than 4% on Friday.The outgoing directors appointed the nominees of activist investor Browning West to the board and ceased discussions on the previously announced sale process.The clothing maker’s board has been clashing with Browning West and seven other investors that own a total of 35% s ...