Switch badges from 'pypip.in' to 'shields.io'
Switch badges from 'pypip.in' to 'shields.io'

The badge hosting at 'pypip.in' has been broken for a while
now, it was supposed to be fixed in the following PR(s):

- https://github.com/badges/pypipins/issues/39
- https://github.com/badges/pypipins/issues/38
- https://github.com/badges/pypipins/issues/37

That does not appear to have actually happened and/or is not
getting addressed, so switch to a more reliable badge hosting
site that provides the same badge information.

Change-Id: I4545eabc57b5ba41102e77e143c96507cec6cf5a

shad7/oslo.config,magic0704/oslo.config,tianshan/oslo.config