From b4107726273ada63f9e70366a573c8af5d09ce51 Mon Sep 17 00:00:00 2001
From: Jaime Casanova <jaime@2ndQuadrant.com>
Date: Thu, 29 Aug 2013 15:27:37 -0500
Subject: [PATCH] Rework algorithm to coordinate voting

Make this by waiting for all nodes to finish a step, before starting
a new one. So everyone starts promoting or following in a coordinated
fashion.
Also make a few fixes.