Merge remote-tracking branch 'origin/fix-no-namespace' into 3.5.4

Author: mbostock

d3.js

@@ -806,11 +806,14 @@
     });
   };
   function d3_selection_creator(name) {
-    return typeof name === "function" ? name : (name = d3.ns.qualify(name)).local ? function() {
+    function create() {
+      var document = this.ownerDocument, namespace = this.namespaceURI;
+      return namespace ? document.createElementNS(namespace, name) : document.createElement(name);
+    }
+    function createNS() {
       return this.ownerDocument.createElementNS(name.space, name.local);
-    } : function() {
-      return this.ownerDocument.createElementNS(this.namespaceURI, name);
-    };
+    }
+    return typeof name === "function" ? name : (name = d3.ns.qualify(name)).local ? createNS : create;
   }
   d3_selectionPrototype.insert = function(name, before) {
     name = d3_selection_creator(name);