The Python module httplib2 has been updated to version 0.9.2, which brings some
fixes and enhancements:

- Fix incorrect ResponseNotReady exceptions, retry on transient errors.
- Fix a problem with headers when a binary string - like b'Authorization'- is passed.
- Default to doing DNS resolution through a proxy server if present.
- Add an updated cacerts.txt file and fix some tests.

This update was imported from the SUSE:SLE-12:Update update project.