Update from Pike requirements

requirements.txt

@@ -1,6 +1,9 @@
-pbr>=1.6,<2.0
-oslo.utils>=2.0.0 # Apache-2.0
-python-glanceclient>=0.18.0
-python-ironicclient>=0.6.0
-python-keystoneclient>=1.6.0
-python-neutronclient>=2.6.0,<3
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+pbr!=2.1.0,>=2.0.0 # Apache-2.0
+oslo.utils>=3.20.0 # Apache-2.0
+python-glanceclient>=2.8.0 # Apache-2.0
+python-ironicclient>=1.14.0 # Apache-2.0
+python-keystoneclient>=3.8.0 # Apache-2.0
+python-neutronclient>=6.3.0 # Apache-2.0

setup.py

@@ -25,5 +25,5 @@ except ImportError:
     pass
 
 setuptools.setup(
-    setup_requires=['pbr>=1.3'],
+    setup_requires=['pbr>=2.0.0'],
     pbr=True)

test-requirements.txt

@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-coverage>=3.6
+coverage!=4.4,>=4.0 # Apache-2.0
 doc8 # Apache-2.0
 hacking<0.11,>=0.10.0
-mock>=1.2
+mock>=2.0 # BSD