Data migration for Django 1.7

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/trans/migrations/0005_auto_20141021_1550.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+def fill_in_fields(apps, schema_editor):
+    SubProject = apps.get_model('trans', 'SubProject')
+
+    for subproject in SubProject.objects.all():
+        subproject.license = subproject.project.license
+        subproject.license_url = subproject.project.license_url
+        subproject.new_lang = subproject.project.new_lang
+        subproject.merge_style = subproject.project.merge_style
+        subproject.commit_message = subproject.project.commit_message
+        subproject.committer_name = subproject.project.committer_name
+        subproject.committer_email = subproject.project.committer_email
+        subproject.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('trans', '0004_auto_20141021_1550'),
+    ]
+
+    operations = [
+        migrations.RunPython(fill_in_fields),
+    ]