Bump the openstackdocstheme extension to 1.20

Some options are now automatically configured by the version 1.20:
- project
- html_last_updated_fmt
- latex_engine
- latex_elements
- version
- release.

Change-Id: Id5c6afef01c6f38cb72c3a6526352db40dcb3a87

doc/requirements.txt

@@ -4,6 +4,6 @@
 # this is required for the docs build jobs
 sphinx>=1.8.0,<2.0.0;python_version=='2.7' # BSD
 sphinx>=1.8.0,!=2.1.0;python_version>='3.4' # BSD
-openstackdocstheme>=1.18.1 # Apache-2.0
+openstackdocstheme>=1.20.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD

doc/source/conf.py

@@ -63,8 +63,6 @@ pygments_style = 'sphinx'
 # html_static_path = ['static']
 html_theme = 'openstackdocs'
 
-html_last_updated_fmt = '%Y-%m-%d %H:%M'
-
 # Output file base name for HTML help builder.
 htmlhelp_basename = '%sdoc' % project
 

releasenotes/source/conf.py

@@ -57,7 +57,6 @@ source_suffix = '.rst'
 master_doc = 'index'
 
 # General information about the project.
-project = u'oslo.utils Release Notes'
 copyright = u'2016, oslo.utils Developers'
 
 # Release notes do not need a version in the title, they span
@@ -146,10 +145,6 @@ html_static_path = ['_static']
 # directly to the root of the documentation.
 # html_extra_path = []
 
-# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
-# using the given strftime format.
-html_last_updated_fmt = '%Y-%m-%d %H:%M'
-
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
 # html_use_smartypants = True
@@ -193,17 +188,6 @@ htmlhelp_basename = 'oslo.utilsReleaseNotesDoc'
 
 # -- Options for LaTeX output ---------------------------------------------
 
-latex_elements = {
-    # The paper size ('letterpaper' or 'a4paper').
-    # 'papersize': 'letterpaper',
-
-    # The font size ('10pt', '11pt' or '12pt').
-    # 'pointsize': '10pt',
-
-    # Additional stuff for the LaTeX preamble.
-    # 'preamble': '',
-}
-
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).