Sync _.isFinite changes with Underscore and update vendor/underscore and vendor/backbone.

Former-commit-id: 9acb93a276a11da8186da76bd82f1fd6f89c27dd

vendor/backbone/backbone.js

@@ -10,7 +10,7 @@
   // Initial Setup
   // -------------
 
-  // Save a reference to the global object (`window` in the browser, `global`
+  // Save a reference to the global object (`window` in the browser, `exports`
   // on the server).
   var root = this;
 
@@ -185,7 +185,7 @@
     var defaults;
     var attrs = attributes || {};
     if (options && options.collection) this.collection = options.collection;
-    if (options && options.parse) attributes = this.parse(attributes);
+    if (options && options.parse) attrs = this.parse(attrs);
     if (defaults = _.result(this, 'defaults')) {
       attrs = _.extend({}, defaults, attrs);
     }
@@ -946,12 +946,10 @@
     // routes can be defined at the bottom of the route map.
     _bindRoutes: function() {
       if (!this.routes) return;
-      var routes = [];
-      for (var route in this.routes) {
-        routes.unshift([route, this.routes[route]]);
-      }
-      for (var i = 0, l = routes.length; i < l; i++) {
-        this.route(routes[i][0], routes[i][1], this[routes[i][1]]);
+      var route, routes = _.keys(this.routes);
+      while ((route = routes.pop()) != null) {
+        var name = this.routes[route];
+        this.route(route, name, this[name]);
       }
     },
 
@@ -1393,14 +1391,14 @@
 
     // For older servers, emulate HTTP by mimicking the HTTP method with `_method`
     // And an `X-HTTP-Method-Override` header.
-    if (Backbone.emulateHTTP) {
-      if (type === 'PUT' || type === 'DELETE') {
-        if (Backbone.emulateJSON) params.data._method = type;
-        params.type = 'POST';
-        params.beforeSend = function(xhr) {
-          xhr.setRequestHeader('X-HTTP-Method-Override', type);
-        };
-      }
+    if (Backbone.emulateHTTP && (type === 'PUT' || type === 'DELETE')) {
+      params.type = 'POST';
+      if (Backbone.emulateJSON) params.data._method = type;
+      var beforeSend = options.beforeSend;
+      options.beforeSend = function(xhr) {
+        xhr.setRequestHeader('X-HTTP-Method-Override', type);
+        if (beforeSend) return beforeSend.apply(this, arguments);
+      };
     }
 
     // Don't process data on a non-GET request.
@@ -1469,7 +1467,7 @@
   };
 
   // Set up inheritance for the model, collection, router, and view.
-  Model.extend = Collection.extend = Router.extend = View.extend = extend;
+  Model.extend = Collection.extend = Router.extend = View.extend = History.extend = extend;
 
   // Throw an error when a URL is needed, and none is supplied.
   var urlError = function() {

vendor/backbone/test/model.js

@@ -55,6 +55,17 @@ $(document).ready(function() {
     equal(model.get('value'), 2);
   });
 
+  test("parse can return null", 1, function() {
+    var Model = Backbone.Model.extend({
+      parse: function(obj) {
+        obj.value += 1;
+        return null;
+      }
+    });
+    var model = new Model({value: 1}, {parse: true});
+    equal(JSON.stringify(model.toJSON()), "{}");
+  });
+
   test("url", 3, function() {
     doc.urlRoot = null;
     equal(doc.url(), '/collection/1-the-tempest');

vendor/backbone/test/router.js

@@ -481,4 +481,15 @@ $(document).ready(function() {
     });
   });
 
+  test("#1746 - Router allows empty route.", 1, function() {
+    var Router = Backbone.Router.extend({
+      routes: {'': 'empty'},
+      empty: function(){},
+      route: function(route){
+        strictEqual(route, '');
+      }
+    });
+    new Router;
+  });
+
 });

vendor/backbone/test/sync.js

@@ -17,6 +17,11 @@ $(document).ready(function() {
       Environment.prototype.setup.apply(this, arguments);
       library = new Library;
       library.create(attrs, {wait: false});
+    },
+
+    teardown: function() {
+      Environment.prototype.teardown.apply(this, arguments);
+      Backbone.emulateHTTP = false;
     }
 
   }));
@@ -157,4 +162,23 @@ $(document).ready(function() {
     this.ajaxSettings.error();
   });
 
+  test("#1756 - Call user provided beforeSend function.", 4, function() {
+    Backbone.emulateHTTP = true;
+    var model = new Backbone.Model;
+    model.url = '/test';
+    var xhr = {
+      setRequestHeader: function(header, value) {
+        strictEqual(header, 'X-HTTP-Method-Override');
+        strictEqual(value, 'DELETE');
+      }
+    };
+    model.sync('delete', model, {
+      beforeSend: function(_xhr) {
+        ok(_xhr === xhr);
+        return false;
+      }
+    });
+    strictEqual(this.ajaxSettings.beforeSend(xhr), false);
+  });
+
 });