old_contents: // This is a manifest file that'll be compiled into application.js, which will include all the files
  // listed below.
  //
  // Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
  // or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
  //
  // It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
  // compiled file.
  //
  // Read Sprockets README (https://github.com/sstephenson/sprockets#sprockets-directives) for details
  // about supported directives.
  //
  //= require jquery
  //= require jquery_ujs
  //= require foundation
  //= require turbolinks
  //= require_tree
  //= require d3
  
  $(function(){ $(document).foundation(); });
  
  var loader = document.getElementById('loader');
  
  startLoading();
  function startLoading() {
    loader.className = '';
  }
  function finishedLoading() {	
    loader.className = 'done';
    setTimeout(function() {
      loader.className = 'hide';
    }, 500);
  }
new_contents: // This is a manifest file that'll be compiled into application.js, which will include all the files
  // listed below.
  //
  // Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
  // or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
  //
  // It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
  // compiled file.
  //
  // Read Sprockets README (https://github.com/sstephenson/sprockets#sprockets-directives) for details
  // about supported directives.
  //
  //= require jquery
  //= require jquery_ujs
  //= require foundation
  //= require turbolinks
  //= require_tree
  //= require d3
  
  $(function(){ $(document).foundation(); });
  
  var loader = document.getElementById('loader');
  
  startLoading();
  function startLoading() {
    $("#map").toggleClass("loading");
    loader.className = '';
  }
  
  function finishedLoading() {
    loader.className = 'done';
    setTimeout(function() {
      loader.className = 'hide';
    }, 500);
    $("#map").toggleClass("loading");
  }
subject: Add toggle of loading class to map