The following classes have been changed:

added:
com.openexchange.saml.spi.SAMLBackend.getConfig(), returns the config
com.openexchange.saml.spi.SAMLBackend.getPath(), returns the saml subpath
com.openexchange.saml.spi.SAMLBackend.getStaticLog inRedirectLocation(HttpServletRequest, HttpServletResponse), returns an optional static redirect on login/relogin.

All those methods are already implemented in the
com.openexchange.saml.spi.AbstractSAMLBackend

This means that any implementation extending AbstractSAMLBackend does not need to be changed.

Additionaly added
com.openexchange.saml.SAMLConfig.getHosts()

This config option returns a Set of hosts that describe the responsibility of this SAMLBackend. Default is [all].