bug 1388933: allow MEDIA_ROOT to be overridden from the environment
bug 1388933: allow MEDIA_ROOT to be overridden from the environment

mozilla/kuma,jwhitlock/kuma,SphinxKnight/kuma,Elchi3/kuma,SphinxKnight/kuma,mozilla/kuma,a2sheppy/kuma,a2sheppy/kuma,escattone/kuma,mozilla/kuma,SphinxKnight/kuma,escattone/kuma,SphinxKnight/kuma,Elchi3/kuma,jwhitlock/kuma,jwhitlock/kuma,mozilla/kuma,a2sheppy/kuma,SphinxKnight/kuma,Elchi3/kuma,a2sheppy/kuma,mozilla/kuma,SphinxKnight/kuma,escattone/kuma,jwhitlock/kuma,a2sheppy/kuma,jwhitlock/kuma,Elchi3/kuma,Elchi3/kuma