Added database credentials and security check for db password.

Added database credentials (user name: 'django', password: 'blank') and
security check for db password. The security check will raise an error
if the database password is 'blank' in production.

{{cookiecutter.repo_name}}/{{cookiecutter.repo_name}}/config/__init__.py

@@ -1,5 +1,18 @@
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import
+import os
+from django.conf import settings
+from django.core.checks import register, Error
 
 from .local import Local  # noqa
 from .production import Production  # noqa
+
+
+@register(settings)
+def dj_database_url_check(app_configs=None, **kwargs):
+    errors = []
+    password = settings.DATABASES['default'].get('PASSWORD')
+    config = os.environ['DJANGO_CONFIGURATION'].lower()
+    if password == 'blank' and config == 'production':
+        errors.append(Error('Change the database password for production.'))
+    return errors

{{cookiecutter.repo_name}}/{{cookiecutter.repo_name}}/config/common.py

@@ -112,7 +112,7 @@ class Common(Configuration):
 
     # DATABASE CONFIGURATION
     # See: https://docs.djangoproject.com/en/dev/ref/settings/#databases
-    DATABASES = values.DatabaseURLValue('postgres://localhost/{{cookiecutter.repo_name}}')
+    DATABASES = values.DatabaseURLValue('postgres://localhost/django:blank{{cookiecutter.repo_name}}')
     # END DATABASE CONFIGURATION
 
     # CACHING