Relax version constraint on Webob-1.0.8

And set it to WebOb 1.2 or later instead. This is consistend with requirements
in other projects.

Change-Id: I3f6c2a632d933b31baa781e367eaf615cb7b8ee9
Stub out find_file... fix policy.json test issue.

Updates test_policy.py so that we stub out find_file
which is used to find the *default* policy file. This
fixes an issue in the test_policy_file_default_not_found
test where it *may* fail when executed on a machine with
Glance package(s) installed (thus created a file in /etc/glance/
that isn't readable by the test user).

Fixes LP Bug #1098687.

Change-Id: If2912d40608ffb07f457454fdc6ebc56c62f6eaf
Update version code from oslo.

Change-Id: Ibe96c6783203dc01d231c5ba990159a089ee27ba
Merge "Stub out find_file... fix policy.json test issue."
Merge "Relax version constraint on Webob-1.0.8"
Merge "Update version code from oslo."