update settings.py to django 1.8

project_name/settings.py

 """
-Django settings for {{ project_name }} project.
+Django settings for {{ project_name }} project on Heroku. Fore more info, see:
+https://github.com/heroku/heroku-django-template
 
 For more information on this file, see
-https://docs.djangoproject.com/en/1.7/topics/settings/
+https://docs.djangoproject.com/en/1.8/topics/settings/
 
 For the full list of settings and their values, see
-https://docs.djangoproject.com/en/1.7/ref/settings/
+https://docs.djangoproject.com/en/1.8/ref/settings/
 """
 
 import os
@@ -16,7 +17,7 @@ BASE_DIR = os.path.dirname(os.path.dirname(__file__))
 
 
 # Quick-start development settings - unsuitable for production
-# See https://docs.djangoproject.com/en/1.7/howto/deployment/checklist/
+# See https://docs.djangoproject.com/en/1.8/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
 SECRET_KEY = "{{ secret_key }}"
@@ -26,8 +27,6 @@ DEBUG = True
 
 TEMPLATE_DEBUG = True
 
-ALLOWED_HOSTS = []
-
 
 # Application definition
 
@@ -48,15 +47,32 @@ MIDDLEWARE_CLASSES = (
     'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'django.middleware.security.SecurityMiddleware',
 )
 
 ROOT_URLCONF = '{{ project_name }}.urls'
 
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
 WSGI_APPLICATION = '{{ project_name}}.wsgi.application'
 
 
 # Database
-# https://docs.djangoproject.com/en/1.7/ref/settings/#databases
+# https://docs.djangoproject.com/en/1.8/ref/settings/#databases
 
 DATABASES = {
     'default': {
@@ -66,7 +82,7 @@ DATABASES = {
 }
 
 # Internationalization
-# https://docs.djangoproject.com/en/1.7/topics/i18n/
+# https://docs.djangoproject.com/en/1.8/topics/i18n/
 
 LANGUAGE_CODE = 'en-us'
 TIME_ZONE = 'UTC'