Add more tests for SimpleSAML_Configuration.
Add more tests for SimpleSAML_Configuration.

dnmvisser/simplesamlphp,jschlyter/simplesamlphp,jschlyter/simplesamlphp,simplesamlphp/simplesamlphp,ghalse/simplesamlphp,ghalse/simplesamlphp,sitya/simplesamlphp,dnmvisser/simplesamlphp,ghalse/simplesamlphp,simplesamlphp/simplesamlphp,dnmvisser/simplesamlphp,simplesamlphp/simplesamlphp,ghalse/simplesamlphp,jschlyter/simplesamlphp,sitya/simplesamlphp,sitya/simplesamlphp,simplesamlphp/simplesamlphp,jschlyter/simplesamlphp,dnmvisser/simplesamlphp,sitya/simplesamlphp,jschlyter/simplesamlphp