Include changelog/history in docs

Also moves doc8 to test-requirements.txt which should
be its more official home instead of being in tox.ini

Change-Id: If3836b211dbb47fa6bec36ac43367139bb939243

doc/source/history.rst

@@ -0,0 +1 @@
+.. include:: ../../ChangeLog

doc/source/index.rst

@@ -12,7 +12,7 @@ collect your technical debt in a non-destructive manner.
     project.
 
 Contents
---------
+========
 
 .. toctree::
    :maxdepth: 2
@@ -22,6 +22,14 @@ Contents
    examples
    contributing
 
+Release Notes
+=============
+
+.. toctree::
+   :maxdepth: 1
+
+   history
+
 Indices and tables
 ==================
 

test-requirements.txt

@@ -13,3 +13,4 @@ oslotest>=1.10.0 # Apache-2.0
 testrepository>=0.0.18
 testscenarios>=0.4
 testtools>=1.4.0
+doc8 # Apache-2.0

tox.ini

@@ -26,11 +26,10 @@ commands = python setup.py build_sphinx
 
 [testenv:py27]
 deps = {[testenv]deps}
-    doc8
 commands =
     python setup.py testr --slowest --testr-args='{posargs}'
     sphinx-build -b doctest doc/source doc/build
-    doc8 doc/source
+    doc8 --ignore-path "doc/source/history.rst" doc/source
 
 [flake8]
 # E123, E125 skipped as they are invalid PEP-8.