Fix openstackdocstheme

See the docs[0] how to use it. Also add the variables for the bug
log feature.

[0]https://docs.openstack.org/openstackdocstheme/latest/

Change-Id: I72f9b78cb2899adce633bda25d16d8af99674dda

releasenotes/source/conf.py

@@ -19,7 +19,6 @@
 
 # -- General configuration ------------------------------------------------
 
-import openstackdocstheme
 
 # If your documentation needs a minimal Sphinx version, state it here.
 #needs_sphinx = '1.0'
@@ -28,6 +27,7 @@ import openstackdocstheme
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
+    'openstackdocstheme',
     'reno.sphinxext',
 ]
 
@@ -107,7 +107,7 @@ html_theme = 'openstackdocs'
 #html_theme_options = {}
 
 # Add any paths that contain custom themes here, relative to this directory.
-html_theme_path = [openstackdocstheme.get_html_theme_path()]
+# html_theme_path = []
 
 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".
@@ -137,7 +137,7 @@ html_static_path = ['_static']
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.
-#html_last_updated_fmt = '%b %d, %Y'
+html_last_updated_fmt = '%Y-%m-%d %H:%M'
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.

test-requirements.txt

@@ -1,6 +1,6 @@
 # This is required for the docs build jobs
-sphinx!=1.6.1,>=1.5.1 # BSD
-openstackdocstheme>=1.5.0 # Apache-2.0
+sphinx>=1.6.2 # BSD
+openstackdocstheme>=1.11.0 # Apache-2.0
 
 # This is required for the releasenotes build jobs
 # FIXME: reno is manually pinned to !=2.0.0 because of bug #1651995