1. What is the problem
OpenStack doc team is doing OpenStack manuals project migraion, we
need to finish some required actions.
2. What is the solution for the problem
As described in the specification[1], we need switch to use html
theme openstackdocstheme instead of oslosphinx.
3. What features need to be implemented to the Tricircle to
realize the solution
N/A
[1] http://specs.openstack.org/openstack/docs-specs/specs/pike/os-manuals-migration.html
Change-Id: I678ab6d7682ba016c9e77434693658c25c5d9778
Depends-On: I27481d9d28875837c0bbb4aec89c42aa07027135