message: Change presence status labels to be more clear.
  As per vector-im/riot-web#3626 the current labels are unclear. Changing the verbage should make it more clear.
diff: @@ -75,7 +75,7 @@ module.exports = React.createClass({
  render: function() {
  if (this.props.activeAgo >= 0) {
  - var ago = this.props.currentlyActive ? "now" : (this.getDuration(this.props.activeAgo) + " ago");
  + var ago = this.props.currentlyActive ? "" : "for " + (this.getDuration(this.props.activeAgo));
  // var ago = this.getDuration(this.props.activeAgo) + " ago";
  // if (this.props.currentlyActive) ago += " (now?)";
  return (
  