Update dependencies (#468)

* Fix docs-samples tests, round 1

* Fix circle.yml

* Add RUN_ALL_BUILDS flag

* More container builder bugfixes

* Tweak env vars + remove manual proxy install

* Env vars in bashrc don't evaluate dynamically, so avoid them

* Add semicolons for command ordering

* Add appengine/static-files test to circle.yaml

* Fix failing container builder tests

* Address comments

dlp/package.json

@@ -57,7 +57,7 @@
     "yargs": "8.0.2"
   },
   "devDependencies": {
-    "@google-cloud/nodejs-repo-tools": "1.4.16",
+    "@google-cloud/nodejs-repo-tools": "1.4.17",
     "ava": "0.21.0"
   }
 }