PRETORIA, Oct 15 (Reuters) - Burundi rebels will rejoin a truce monitoring team they quit in July, South African facilitator Charles Nqakula said on Monday. "The stalled Burundi peace process will be resumed on Saturday, Oct 20. when the joint verification monitoring mechanism hold a meeting in Bujumbura to resume the task of implementing the ceasefire agreement between the Burundi government and the...(rebel) FNL," Nqakula told a news conference.