Add missing migration dependency (fixes #482)

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

weblate/trans/migrations/0014_auto__chg_field_check_language.py

@@ -23,6 +23,10 @@ from south.v2 import SchemaMigration
 
 class Migration(SchemaMigration):
 
+    depends_on = (
+        ('lang', '0002_auto__add_field_language_direction'),
+    )
+
     def forwards(self, orm):
 
         # Changing field 'Check.language'