Update storage samples. (#263)

* Update storage samples.

* Update dependencies.

Author: jmdobry

compute/package.json

@@ -9,7 +9,7 @@
     "system-test": "mocha -R spec -t 120000 --require intelli-espower-loader ../system-test/_setup.js system-test/*.test.js"
   },
   "dependencies": {
-    "@google-cloud/compute": "^0.1.1",
+    "@google-cloud/compute": "0.4.0",
     "googleapis": "^12.2.0",
     "nodemailer": "^2.4.1",
     "nodemailer-smtp-transport": "^2.5.0",