add script to reset migrations

Signed-off-by: Nico Schottelius <nico@nico-notebook.schottelius.org>

bin/make-migrations-from-scratch.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+# For undoing/redoing everything
+# Needed in special cases and needs to be avoided as soon as
+# uncloud.version >= 1
+for a in */migrations; do rm ${a}/*.py; done
+for a in */migrations; do python manage.py makemigrations ${a%%/migrations}; done