Fix lower constraints

Change-Id: Ia345c84f3eab190785c297342ef1bcd3f15fc96c

lower-constraints.txt

@@ -5,9 +5,9 @@ certifi==2018.1.18
 chardet==3.0.4
 cliff==2.11.0
 cmd2==0.8.1
-coverage==4.5.1
+coverage==4.0
 debtcollector==1.19.0
-doc8==0.8.0
+doc8==0.6.0
 docutils==0.14
 dulwich==0.19.0
 enum-compat==0.0.2
@@ -15,14 +15,14 @@ eventlet==0.20.0
 extras==1.0.0
 fasteners==0.14.1
 fixtures==3.0.0
-flake8==2.5.5
 flake8-import-order==0.11
+flake8==2.5.5
 future==0.16.0
 greenlet==0.4.13
 hacking==0.12.0
 idna==2.6
 imagesize==1.0.0
-ironic-lib==2.12.0
+ironic-lib==2.5.0
 iso8601==0.1.12
 Jinja2==2.10
 jsonschema==2.6.0
@@ -41,16 +41,16 @@ os-testr==1.0.0
 oslo.concurrency==3.26.0
 oslo.config==5.2.0
 oslo.context==2.20.0
-oslo.i18n==3.20.0
-oslo.log==3.37.0
+oslo.i18n==3.15.3
+oslo.log==3.36.0
 oslo.serialization==2.25.0
-oslo.service==1.30.0
-oslo.utils==3.36.0
-oslosphinx==4.18.0
-oslotest==3.3.0
+oslo.service==1.24.0
+oslo.utils==3.33.0
+oslosphinx==4.7.0
+oslotest==3.2.0
 Paste==2.0.3
 PasteDeploy==1.5.2
-pbr==3.1.1
+pbr==2.0.0
 pep8==1.5.7
 prettytable==0.7.2
 pycodestyle==2.3.1
@@ -61,25 +61,25 @@ pyparsing==2.2.0
 pyperclip==1.6.0
 python-dateutil==2.7.0
 python-mimeparse==1.6.0
-python-subunit==1.2.0
+python-subunit==1.0.0
 pytz==2018.3
 PyYAML==3.12
-reno==2.7.0
+reno==2.5.0
 repoze.lru==0.7
 requests==2.18.4
 requestsexceptions==1.4.0
 restructuredtext-lint==1.1.3
 rfc3986==1.1.0
 Routes==2.4.1
-six==1.11.0
+six==1.10.0
 snowballstemmer==1.2.1
-Sphinx==1.6.5
+Sphinx==1.6.2
 sphinxcontrib-websupport==1.0.1
 stestr==2.0.0
 stevedore==1.28.0
 testrepository==0.0.20
-testscenarios==0.5.0
-testtools==2.3.0
+testscenarios==0.4
+testtools==2.2.0
 traceback2==1.4.0
 unittest2==1.1.0
 urllib3==1.22