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

error-reporting/package.json

@@ -22,14 +22,14 @@
   },
   "dependencies": {
     "@google-cloud/error-reporting": "0.2.1",
-    "express": "4.15.3",
+    "express": "4.15.4",
     "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",
     "proxyquire": "1.8.0",
-    "sinon": "3.0.0"
+    "sinon": "3.2.0"
   },
   "cloud-repo-tools": {
     "requiresKeyFile": true,