Update django from 1.11.14 to 1.11.15
Update django from 1.11.14 to 1.11.15
mrpau/kolibri,lyw07/kolibri,mrpau/kolibri,learningequality/kolibri,DXCanas/kolibri,lyw07/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,DXCanas/kolibri,learningequality/kolibri,learningequality/kolibri,DXCanas/kolibri,lyw07/kolibri,lyw07/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,mrpau/kolibri,learningequality/kolibri,mrpau/kolibri,DXCanas/kolibri