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

compute/package.json

@@ -20,14 +20,14 @@
     "test": "samples test run --cmd npm -- run all-test"
   },
   "dependencies": {
-    "@google-cloud/compute": "0.7.2",
+    "@google-cloud/compute": "0.8.0",
     "googleapis": "20.1.0",
     "nodemailer": "4.0.1",
     "nodemailer-smtp-transport": "2.7.4",
-    "sendgrid": "5.2.0"
+    "sendgrid": "5.2.2"
   },
   "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"
   },