[manual] Rename Django app from zephyr to zerver.

This needs to be deployed to both staging and prod at the same
off-peak time (and the schema migration run).

At the time it is deployed, we need to make a few changes directly in
the database:

(1) UPDATE django_content_type set app_label='zerver' where app_label='zephyr';
(2) UPDATE south_migrationhistory set app_name='zerver' where app_name='zephyr';

(imported from commit eb3fd719571740189514ef0b884738cb30df1320)

zerver/management/commands/sync_api_key.py

@@ -0,0 +1,23 @@
+from __future__ import absolute_import
+
+from django.core.management.base import BaseCommand
+from zerver.models import get_user_profile_by_email
+import os
+from ConfigParser import SafeConfigParser
+
+class Command(BaseCommand):
+    help = """Reset all colors for a person to the default grey"""
+
+    def handle(self, *args, **options):
+        config_file = os.path.join(os.environ["HOME"], ".humbugrc")
+        if not os.path.exists(config_file):
+            raise RuntimeError("No ~/.humbugrc found")
+        config = SafeConfigParser()
+        with file(config_file, 'r') as f:
+            config.readfp(f, config_file)
+        api_key = config.get("api", "key")
+        email = config.get("api", "email")
+
+        user_profile = get_user_profile_by_email(email)
+        user_profile.api_key = api_key
+        user_profile.save(update_fields=["api_key"])