Fix travis (#76)

.travis.yml

@@ -1,2 +1,5 @@
 sudo: false
 language: node_js
+install:
+  - npm install
+  - bower install

package.json

@@ -22,7 +22,9 @@
     "watch_ru_all": "npm run watch_ru_core | npm run watch_ru_demo",
     "watch_ru_core": "rollup --config rollup/core.js --watch",
     "watch_ru_demo": "rollup --config rollup/demo.js --watch",
-    "test": "eslint src panels --ext html && ls -1 src/**/*.html panels/**/*.html | xargs polymer lint --input"
+    "lint_js": "eslint src panels --ext html",
+    "lint_html": "ls -1 src/**/*.html panels/**/*.html | xargs polymer lint --input",
+    "test": "npm run lint_js && npm run lint_html"
   },
   "author": "Paulus Schoutsen <Paulus@PaulusSchoutsen.nl> (http://paulusschoutsen.nl)",
   "license": "MIT",