chore(assets): add fetch script to pull material2 assets

Author: riavalon

.gitignore

@@ -3,6 +3,8 @@
 # compiled output
 /dist
 /tmp
+/src/assets/documents
+/src/assets/examples
 
 # dependencies
 /node_modules
@@ -32,4 +34,4 @@ testem.log
 
 #System Files
 .DS_Store
-Thumbs.db
+Thumbs.db

package.json

@@ -12,7 +12,7 @@
     "prerender": "node tools/prerenderer/get-all-urls.js && protractor config/protractor-prerender.conf.js",
     "prerender:serve": "node tools/prerenderer/serve.js",
     "prod-build": "ng build --aot --prod && npm run prerender && cp -r tmp/prerendered/* dist/",
-    "postinstall": "webdriver-manager update",
+    "postinstall": "webdriver-manager update && tools/fetch-assets.sh",
     "publish-prod": "ng build --aot --prod && firebase use material-angular-io && firebase deploy",
     "publish-dev": "ng build --aot --prod && firebase use material2-docs-dev && firebase deploy"
   },