Add Angular eslint plugin.

package.json

@@ -7,6 +7,7 @@
     "connect-logger": "0.0.1",
     "connect-proxy-layer": "^0.1.2",
     "eslint": "^3.7.1",
+    "eslint-config-angular": "^0.5.0",
     "eslint-config-google": "~0.6",
     "eslint-plugin-angular": "^1.4.1",
     "eslint-plugin-html": "^1.5.3",