Raft HTTP: fix pause/resume race condition
Raft HTTP: fix pause/resume race condition

ajityagaty/etcd,dannysauer/etcd,mkumatag/etcd,ajityagaty/etcd,li-ang/etcd,rnaveiras/etcd,dannysauer/etcd,li-ang/etcd,gyuho/etcd,gyuho/etcd,etcd-io/etcd,cockroachdb/etcd,coreos/etcd,rnaveiras/etcd,mkumatag/etcd,ajityagaty/etcd,etcd-io/etcd,mkumatag/etcd,mqliang/etcd,coreos/etcd,mqliang/etcd,rnaveiras/etcd,mqliang/etcd,etcd-io/etcd,cockroachdb/etcd