add south migrations, convert update to python

pandora/app/management/commands/south_installed.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# vi:si:et:sw=4:sts=4:ts=4
+from django.core.management.base import BaseCommand
+from django.db import connection, transaction
+
+
+class Command(BaseCommand):
+    """
+    """
+    help = 'check if south migrations are initialized'
+    args = ''
+
+    def handle(self, **options):
+        try:
+            import south.models
+            table_name = south.models.MigrationHistory._meta.db_table
+            cursor = connection.cursor()
+            db_rows = connection.introspection.get_table_description(cursor, table_name)
+            print "yes"
+        except:
+            print "no"