Fixed errors while generating releasenotes

*Extension error:
Could not import extension oslosphinx
(exception: No module named oslosphinx)
*Extension error:
Could not import extension reno.sphinxtest
(exception: No module named sphinxtest)
*Warning, treated as error:
/home/python-mistralclient/releasenotes/source/index.rst:7:
WARNING: toctree contains reference to nonexisting document
u'Indices and tables' Also correct the mistralclient version details.

Change-Id: Icabd8a2a4876786abbad35e55f0d59ad94651d85
Closes-Bug: #1634809

releasenotes/source/conf.py

@@ -24,6 +24,7 @@
 # serve to show the default.
 
 # import sys, os
+import pbr.version
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -39,7 +40,7 @@
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = [
     'oslosphinx',
-    'reno.sphinxtest',
+    'reno.sphinxext',
 ]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -61,8 +62,8 @@ copyright = u'2016, Mistral developers'
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
-#
-from mistralclient.version import version_info as mistralclient_version
+
+mistralclient_version = pbr.version.VersionInfo('python-mistralclient')
 # The short X.Y version.
 version = mistralclient_version.canonical_version_string()
 # The full version, including alpha/beta/rc tags.

releasenotes/source/index.rst

@@ -8,10 +8,3 @@ Contents
    :maxdepth: 2
 
    unreleased
-
-
-   Indices and tables
-   ==================
-
-   * :ref:`genindex`
-     * :ref:`search`

test-requirements.txt

@@ -12,3 +12,4 @@ requests-mock>=1.1 # Apache-2.0
 tempest>=12.1.0 # Apache-2.0
 osprofiler>=1.4.0 # Apache-2.0
 reno>=1.8.0 # Apache2
+oslosphinx>=4.7.0 # Apache-2.0