Updated raft design. (#2353)
Updated raft design. (#2353)

Signed-off-by: Anshul Pundir <b83733ec9a5dc60cc9eb3ca9cb86ec17acc0a878@docker.com>
AliyunContainerService/swarmkit,sungwonh/swarmkit,jlhawn/swarmkit,jlhawn/swarmkit,dperny/swarmkit-1,alyyousuf7/swarmkit,cheyang/swarmkit,cheyang/swarmkit,sungwonh/swarmkit,alyyousuf7/swarmkit,dperny/swarmkit-1,AliyunContainerService/swarmkit,docker/swarmkit,docker/swarmkit