Switch from oslosphinx to openstackdocstheme

To use openstackdocstheme 1.11.0 properly, this patch fixes
some settings according to follow.
https://docs.openstack.org/openstackdocstheme/latest/

Change-Id: I1d3dee2bb7b5de8abc110d1609b9b41bd363f802

releasenotes/source/conf.py

@@ -29,7 +29,7 @@ import os
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
 extensions = [
-    'oslosphinx',
+    'openstackdocstheme',
     'reno.sphinxext',
 ]
 
@@ -41,6 +41,15 @@ templates_path = ['_templates']
 # source_suffix = ['.rst', '.md']
 source_suffix = '.rst'
 
+# openstackdocstheme options
+repository_name = 'openstack/trove-dashboard'
+bug_project = 'trove-dashboard'
+bug_tag = ''
+
+# Must set this variable to include year, month, day, hours, and minutes.
+html_last_updated_fmt = '%Y-%m-%d %H:%M'
+
+
 # The encoding of source files.
 #source_encoding = 'utf-8-sig'
 
@@ -112,7 +121,7 @@ todo_include_todos = False
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'default'
+html_theme = 'openstackdocs'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the

test-requirements.txt

@@ -10,8 +10,8 @@ mock>=1.2
 mox3>=0.7.0
 python-subunit>=0.0.18
 selenium
-sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2
-oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
+sphinx>=1.6.2 # BSD
+openstackdocstheme>=1.17.0 # Apache-2.0
 testrepository>=0.0.18
 testscenarios>=0.4
 testtools>=1.4.0