Bump DOMPurity to 1.0.4

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

core/vendor/DOMPurify/.bower.json

@@ -1,6 +1,6 @@
 {
   "name": "DOMPurify",
-  "version": "1.0.0",
+  "version": "1.0.4",
   "homepage": "https://github.com/cure53/DOMPurify",
   "author": "Cure53 <info@cure53.de>",
   "description": "A DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG",
@@ -29,14 +29,13 @@
     "test",
     "website"
   ],
-  "_release": "1.0.0",
+  "_release": "1.0.4",
   "_resolution": {
     "type": "version",
-    "tag": "1.0.0",
-    "commit": "4d0115a125b295e8b8e9fe4353222da53e543ba0"
+    "tag": "1.0.4",
+    "commit": "e7a1c316269bc0f6dd2698c3a7571bc4b561d892"
   },
   "_source": "https://github.com/cure53/DOMPurify.git",
   "_target": "^1.0.0",
-  "_originalSource": "DOMPurify",
-  "_direct": true
+  "_originalSource": "DOMPurify"
 }