google/oauth2client — pull request #83 by dhermes (2014-12-05 18:07:14+00:00)
Title: Refactoring _get_environment.

- Removes use of "global" by putting the env name in another
namespace.
- Splits logic into digestible pieces.
- Also makes slight change to GoogleCredentials docstring.

This is the first chunk of #80. I'm happy to wait until #82 is in and rebase.