Update get_course_about_section call after 1.8 merge
Update get_course_about_section call after 1.8 merge

caesar2164/edx-platform,Stanford-Online/edx-platform,caesar2164/edx-platform,Stanford-Online/edx-platform,caesar2164/edx-platform,Stanford-Online/edx-platform,caesar2164/edx-platform,Stanford-Online/edx-platform