[Documentation Issue] Links to previous versions are missing.

[tswast]

I mentioned this in #2069.

The links to previous versions of the documentation are now missing. http://googlecloudplatform.github.io/gcloud-python/0.17.0/ versus http://googlecloudplatform.github.io/gcloud-python/#/docs/master/gcloud

[dhermes]

Thanks for the report!

[daspecster]

I think this is an error in logic in my generate shell script. I'll check this out tonight.

[daspecster]

Also closed by #2267.