Updated models for OpenSsh 6.4
updated test for IPQoS parameter
removed utf-8 char from description in models
model Sshd::MatchElement: put back deprecated AuthorizedKeysFile2
fixed tests
v1.231

  * Added parameters supported by OpenSsh 6.4
    (i.e. IgnoreUnknown ForwardX11Timeout GatewayPorts
	GSSAPIKeyExchange GSSAPIClientIdentity GSSAPIServerIdentity
	GSSAPIDelegateCredentials GSSAPIRenewalForcesRekey GSSAPITrustDns
	IPQoS KexAlgorithms PKCS11Provider AllowAgentForwarding
	AuthenticationMethods AuthorizedKeysCommand
	AuthorizedKeysCommandUser AuthorizedPrincipalsFile ChrootDirectory
	GSSAPIStoreCredentialsOnRekey HostCertificate HostKeyAgent
	MaxSessions PermitBlacklistedKeys PubkeyAuthentication RekeyLimit
	RevokedKeys RhostsRSAAuthentication TrustedUserCAKeys
	VersionAddendum)