Updated from global requirements

Change-Id: I03c975e6ec0b0e169f039fb71686a4fcc9d81c48

requirements.txt

@@ -1,6 +1,6 @@
 docutils==0.9.1
 oslosphinx
 pbr>=0.6,!=0.7,<1.0
-sphinx>=1.1.2,<1.2
+sphinx>=1.1.2,!=1.2.0,<1.3
 testrepository>=0.0.18
 testtools>=0.9.34

setup.py

@@ -17,6 +17,14 @@
 # THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
 import setuptools
 
+# 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
+try:
+    import multiprocessing  # noqa
+except ImportError:
+    pass
+
 setuptools.setup(
     setup_requires=['pbr'],
     pbr=True)