Removed unused Login.feature
Upgraded dependencies
Removed unused parameters
Fixed path to fixture files in parameters.yml
Removed reference to removed bin/dump_sr_state.php command and introduced app/console dump:sr
phpDoc fixes
Introduced EntityRegistry->getOnly becuase in most functional tests there is either 1 SP or 1 IdP
Add snakeoil public and private key to metadata for idp and sp by default
Fixed non-replay stories.