contint: install python-requests on all hosts

The 'requests' python modules makes dev life easier.  Have to harness
the puppet definition since publish-console uses the package already and
I want to keep the explicit dependency there.

Change-Id: I4ca9ea77c4bb6c22d9ac3d14c1c165edc0ae6edc
Merge "contint: install python-requests on all hosts" into production