Merge pull request #167 from webcomponents/fix-slot-insertbefore

Fix bug with inserting nodes before a <slot> in lightdom

Author: Steve Orvell

package.json

@@ -31,12 +31,12 @@
   "homepage": "https://webcomponents.org/polyfills",
   "devDependencies": {
     "@webcomponents/custom-elements": "^1.0.0",
-    "@webcomponents/shadycss": "^1.0.0",
+    "@webcomponents/shadycss": "^1.0.2",
     "@webcomponents/template": "^1.0.0",
     "@webcomponents/webcomponents-platform": "^1.0.0",
     "eslint": "^3.4.0",
     "eslint-plugin-html": "^2.0.0",
-    "google-closure-compiler": "^20170409.0.0",
+    "google-closure-compiler": "^20170626.0.0",
     "gulp": "^3.8.8",
     "gulp-rename": "^1.2.2",
     "gulp-rollup": "^2.5.1",