Add oslosphinx to get OpenStack branding. Remove html_static_path since it's unused and issues a warning. Update copyright year. Change-Id: I0bdcab8ebc5a201a3f91b4a6c4724536d1157901
Change-Id: I070e5d6eaa31be360608a4d03598ccabc0dce602 Closes-Bug: #1297496