Put settings import back because it's used here. (#25481)
Put settings import back because it's used here. (#25481)

But change the order so that celery is loaded first.
stvstnfrd/edx-platform,stvstnfrd/edx-platform,EDUlib/edx-platform,EDUlib/edx-platform,EDUlib/edx-platform,angelapper/edx-platform,arbrandes/edx-platform,eduNEXT/edunext-platform,eduNEXT/edx-platform,eduNEXT/edunext-platform,eduNEXT/edx-platform,angelapper/edx-platform,edx/edx-platform,arbrandes/edx-platform,eduNEXT/edunext-platform,eduNEXT/edx-platform,stvstnfrd/edx-platform,eduNEXT/edx-platform,angelapper/edx-platform,edx/edx-platform,arbrandes/edx-platform,eduNEXT/edunext-platform,angelapper/edx-platform,edx/edx-platform,stvstnfrd/edx-platform,arbrandes/edx-platform,EDUlib/edx-platform,edx/edx-platform