backport of JCLOUDS-362 fix (jclouds-labs-google cec667a8aed54ebd0c976758181ca7e9899008cf)
backport of live tests fix for oauth problems re JCLOUDS-360 (from jclouds-lab-google cf7adb8835f0aab4a217d0ec53f2b882afd93810)