Added migration file
Added migration file

	new file:   base/migrations/0441_auto_20190325_0907.py

uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/osis,uclouvain/osis,uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/OSIS-Louvain