* [FEATURE] Add TLS support.
Fixes#368.
* [FEATURE] Introduce OnError hook in suites.
This hook allows to perform actions following an erroneous suite
like displaying the logs of Authelia.
* Display Authelia logs of Standalone suite when tests fail.
* Fix Standalone suite.
* Apply suggestions from code review
* Rename ssl_key and ssl_cert into tls_key and tls_cert.
