PAUL LORGERIE and TIEMOKO DIALLO WEST African regional bloc ECOWAS has suspended Mali's membership in response to last week's coup and said authorities must stick to a timetable for a return to democracy, but stopped short of imposing new sanctions. Leaders of the 15-member Economic Community of West African States held an emergency summit in Ghana's capital Accra to agree on a response to the Malian military's ouster of a president and prime minister for the second time in nine months. Mali's neighbours and international powers fear the latest revolt will jeopardise a commitment to hold a presidential election next…