message: Reduce number of unpaginated events by 1
  When unpaginating in the backwards direction
diff: @@ -263,7 +263,7 @@ var TimelinePanel = React.createClass({
  }
  );
  - let count = backwards ? marker + 1 : this.state.events.length - marker;
  + let count = backwards ? marker : this.state.events.length - marker;
  if (count > 0) {
  debuglog("TimelinePanel: Unpaginating", count, "in direction", dir);
  