Add reno for release notes management

Change-Id: Iaaf3f9ca7cb431e41adfb2a052e01e2240a63a07

.gitignore

@@ -20,3 +20,5 @@ doc/source/api/
 .project
 .pydevproject
 cover
+# Files created by releasenotes build
+releasenotes/build

test-requirements.txt

@@ -9,6 +9,7 @@ fixtures>=1.3.1
 mock>=1.2
 oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
+reno>=0.1.1  # Apache2
 requests-mock>=0.6.0 # Apache-2.0
 sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2
 os-testr>=0.4.1

tox.ini

@@ -33,6 +33,9 @@ downloadcache = ~/cache/pip
 [testenv:docs]
 commands = python setup.py build_sphinx
 
+[testenv:releasenotes]
+commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
+
 [flake8]
 show-source = True
 exclude = .git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build,tools