old_contents: var Handlebars = require('handlebars');
  var moment = require('moment');
  
  module.exports = {
    nl2br: function(value) {
      value = value || '';
      var html = (value).replace(/\n/g, '<br>');
      return new Handlebars.SafeString(html);
    },
    formatMMMMYYYY: function(value) {
      value = value || '';
      var html = moment(new Date((value))).format('MMMM YYYY');
      return new Handlebars.SafeString(html);
    },
    formatMMMDDYYYY: function(value) {
      value = value || '';
      var html = moment(new Date((value))).format('MMM DD, YYYY');
      return new Handlebars.SafeString(html);
    },
    sanitizePhone: function(value) {
      value = value || '';
      var html = (value).replace(/[-\s]/g, '');
      return new Handlebars.SafeString(html);
    },
    sanitizeURL: function(value) {
      value = value || '';
      var html = (value).replace(/http?s:\/\//g, '');
      return new Handlebars.SafeString(html);
    },
  };
  
new_contents: var Handlebars = require('handlebars');
  var moment = require('moment');
  
  module.exports = {
    nl2br: function(value) {
      value = value || '';
      var html = (value).replace(/\n/g, '<br>');
      return new Handlebars.SafeString(html);
    },
    formatMMMMYYYY: function(value) {
      value = value || '';
      var html = moment(new Date((value))).format('MMMM YYYY');
      return new Handlebars.SafeString(html);
    },
    formatMMMDDYYYY: function(value) {
      value = value || '';
      var html = moment(new Date((value))).format('MMM DD, YYYY');
      return new Handlebars.SafeString(html);
    },
    sanitizePhone: function(value) {
      value = value || '';
      var html = (value).replace(/[-\s]/g, '');
      return new Handlebars.SafeString(html);
    },
    sanitizeURL: function(value) {
      value = value || '';
      var html = (value).replace(/http?s:\/\//g, '');
      return new Handlebars.SafeString(html);
    },
    humaneDuration: function(start, end) {
      start = start || '';
      var endTimestamp = end ? new Date(end).getTime() : Date.now();
      var duration = endTimestamp - (new Date(start).getTime());
      return moment.duration(duration).humanize();
    }
  };
  
subject: Add helper for durations