
This patch implements the use of uWSGI exclusively, always with a web server acting as a reverse proxy. It removes the option of using uWSGI with Apache and mod_wsgi. In the case of Keystone being used in a Federated Service Provider configuration, it will use Apache as the web server but for all other environments it will use Nginx instead. Change-Id: If6e95fc0d3f7d34780db1aed2b8cedca87499934