Huawei executive Meng Wanzhou returned to China Saturday shortly after two Canadians released from prison in China also arrived in Calgary, ending a bitter diplomatic row that has poisoned ties for three years. Meng and the two Canadians – former diplomat Michael Kovrig and businessman Michael Spavor – were detained in a bitter spat that critics have called "hostage diplomacy". Meng, the 49-year-old daughter of Ren Zhengfei, the billionaire founder of Chinese telecoms giant Huawei, was granted release in a Vancouver court hearing after three years of house arrest in Canada while fighting extradition to the United States (US). This…