Dependency conflict when running setup.py develop #2359
Description
When installing a development checkout per the documentation, there is a dependency conflict:
$ $VENV/bin/python setup.py develop
running develop
<snip>
Installed /tmp/google-cloud-python/lib/python2.7/site-packages/oauth2client-2.0.0-py2.7.egg
error: oauth2client 2.0.0 is installed but oauth2client<2.0.0,>=1.4.11 is required by set(['gapic-google-logging-v2', 'gapic-google-pubsub-v1'])