old_contents: var Backbone = require('./backbone');
  var _ = require('underscore');
  
  module.exports = Backbone.Collection;
  
  Backbone.Collection.toString = function() {
      return '<Collection ' + this.title + '>';
  };
  
  Backbone.Collection.register = function(app) {
      // Add the collection if it's not a server-only collection.
      this.files.forEach(function(filename) {
          if (!(/\.server\.bones$/).test(filename) && app.assets) {
              app.assets.models.push(filename);
          }
      });
  
      app.models[this.title] = this;
  };
  
  Backbone.Collection.prototype.toString = function() {
      return '[Collection ' + this.constructor.title + ']';
  };
  
new_contents: var Backbone = require('./backbone');
  var _ = require('underscore');
  
  module.exports = Backbone.Collection;
  
  Backbone.Collection.toString = function() {
      return '<Collection ' + this.title + '>';
  };
  
  Backbone.Collection.register = function(app) {
      // Add the collection if it's not a server-only collection.
      this.files.forEach(function(filename) {
          if (!(/\.server\.bones(\.js|)$/).test(filename) && app.assets &&
              app.assets.models.indexOf(filename) < 0) {
              app.assets.models.push(filename);
          }
      });
  
      app.models[this.title] = this;
  };
  
  Backbone.Collection.prototype.toString = function() {
      return '[Collection ' + this.constructor.title + ']';
  };
  
subject: Switch collections to new .js file format.