Work around two issues that broke the travis build.
Work around two issues that broke the travis build.

https://code.google.com/p/google-cloud-sdk/issues/detail?id=727
https://github.com/GoogleCloudPlatform/appengine-flask-skeleton/issues/1

GoogleCloudPlatform/pubsub-shout-csharp,GoogleCloudPlatform/pubsub-shout-csharp,GoogleCloudPlatform/pubsub-shout-csharp,GoogleCloudPlatform/pubsub-shout-csharp