Update dom5 to 3.0.0

Author: TimvdLippe

gulpfile.js

@@ -24,7 +24,7 @@ const size = require('gulp-size');
 const lazypipe = require('lazypipe');
 const closure = require('google-closure-compiler').gulp();
 const minimalDocument = require('./util/minimalDocument.js');
-const dom5 = require('dom5');
+const dom5 = require('dom5/lib/index-next');
 const parse5 = require('parse5');
 const replace = require('gulp-replace');
 

package-lock.json

@@ -14,7 +14,7 @@
     "@webcomponents/webcomponentsjs": "^1.1.0",
     "babel-preset-minify": "^0.2.0",
     "del": "^3.0.0",
-    "dom5": "^2.3.0",
+    "dom5": "^3.0.0",
     "eslint-plugin-html": "^4.0.1",
     "fs-extra": "^4.0.3",
     "google-closure-compiler": "^20171112.0.0",
@@ -27,7 +27,7 @@
     "gulp-vulcanize": "^6.0.1",
     "lazypipe": "^1.0.1",
     "merge-stream": "^1.0.1",
-    "parse5": "^3.0.3",
+    "parse5": "^4.0.0",
     "polymer-build": "^2.1.1",
     "run-sequence": "^2.2.0",
     "through2": "^2.0.0",