New database cleanup script.

fixed #163

admin/scripts/dbcleanup.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+# coding: utf-8
+
+"""
+Simple script to remove useless records from the database (like orphan
+User records).
+"""
+
+from django.contrib.auth.models import User
+from modoboa.admin.models import Mailbox
+
+def dbcleanup():
+    print "Starting database cleanup"
+    for user in User.objects.all():
+        if user.id != 1 and not len(user.mailbox_set.all()):
+            print "Removing orphan user %s" % user.username
+            user.delete()
+    print "Done"
+
+if __name__ == "__main__":
+    dbcleanup()
+