Update Blob.js to v2014-07-24.

Gruntfile.js

@@ -128,7 +128,7 @@ module.exports = function (grunt) {
           'docs/assets/js/vendor/less.min.js',
           'docs/assets/js/vendor/jszip.min.js',
           'docs/assets/js/vendor/uglify.min.js',
-          'docs/assets/js/vendor/blob.js',
+          'docs/assets/js/vendor/Blob.js',
           'docs/assets/js/vendor/filesaver.js',
           'docs/assets/js/raw-files.min.js',
           'docs/assets/js/src/customizer.js'

docs/assets/js/vendor/blob.js → docs/assets/js/vendor/Blob.js

 /* Blob.js
  * A Blob implementation.
- * 2014-07-01
- * 
+ * 2014-07-24
+ *
  * By Eli Grey, http://eligrey.com
- * By Devin Samarin, https://github.com/eboyjr
+ * By Devin Samarin, https://github.com/dsamarin
  * License: X11/MIT
  *   See https://github.com/eligrey/Blob.js/blob/master/LICENSE.md
  */
@@ -59,16 +59,34 @@
 			, URL = real_URL
 			, btoa = view.btoa
 			, atob = view.atob
-			
+
 			, ArrayBuffer = view.ArrayBuffer
 			, Uint8Array = view.Uint8Array
+
+			, origin = /^[\w-]+:\/*\[?[\w\.:-]+\]?(?::[0-9]+)?/
 		;
 		FakeBlob.fake = FB_proto.fake = true;
 		while (file_ex_code--) {
 			FileException.prototype[file_ex_codes[file_ex_code]] = file_ex_code + 1;
 		}
+		// Polyfill URL
 		if (!real_URL.createObjectURL) {
-			URL = view.URL = {};
+			URL = view.URL = function(uri) {
+				var
+					  uri_info = document.createElementNS("http://www.w3.org/1999/xhtml", "a")
+					, uri_origin
+				;
+				uri_info.href = uri;
+				if (!("origin" in uri_info)) {
+					if (uri_info.protocol.toLowerCase() === "data:") {
+						uri_info.origin = null;
+					} else {
+						uri_origin = uri.match(origin);
+						uri_info.origin = uri_origin && uri_origin[1];
+					}
+				}
+				return uri_info;
+			};
 		}
 		URL.createObjectURL = function(blob) {
 			var