Updated openstack/openstack
Project: openstack/requirements  ea444a23ffcc886b5ad3636e0198625cc1c53cb7
null
Work around atexit bug in python < 2.7.4

In python < 2.7.4, a lazy loading of package `pbr` will break
setuptools if some other modules registered functions in `atexit`.
solution from: http://bugs.python.org/issue15881#msg170215

This problem originally appeared in stevedore before the library
was adopted by Oslo
(https://github.com/dreamhost/stevedore/commit/74a719b11781cc93d60cff1b0a01de3e4e780a1d)

Change-Id: Icd412ca8435dca4b0f3b4075eca39b903dde6d27
Updated openstack/openstack
Project: openstack/keystone  3295b253562b4cbe557448a52fc6382c55ca1799
null
Adds style checks to ease reviewer burden

The following checks were added in this commit:

 - mutable default args are no longer allowed
 - block comments must begin with at least one space
 - enforce assertIsNone instead of assertEqual with a None

bp more-code-style-automation

Change-Id: I7dba0c8b45078a665d40993d751c79566aa7505f