Use oslo-config-2013.1b3

The cfg API is now available via the oslo-config library, so switch to
it and remove the copied-and-pasted version.

Add the 2013.1b3 tarball to tools/pip-requires - this will be changed
to 'oslo-config>=2013.1' when oslo-config is published to pypi. This
will happen in time for grizzly final.

Remove the 'deps = pep8==1.3.3' from tox.ini as it means all the other
deps get installed with easy_install which can't install oslo-config
from the URL.

Change-Id: I4815aeb8a9341a31a250e920157f15ee15cfc5bc
Update sample_data.sh to match docs

Confirm more with the "OpenStack Install and Deploy Manual."

Change-Id: I46ab7e8e5ccdf389cbc60fee84c063f289155781
Fixes: bug #1073291
Remove old, outdated keystone devref docs

The doc/source/old directory contained several docs
that were marked as 'old' and hadn't been updated for more
than a year.

This patch simply removes them - they aren't referred to in
any way noticable on keystone.openstack.org.

Change-Id: Ida57e0321be09aa8ddcb966f386132946017cdcb
Merge "Update sample_data.sh to match docs"
Merge "Use oslo-config-2013.1b3"
Merge "Remove old, outdated keystone devref docs"