v2.0.0-rc.2

ound while testing v2.0.0-rc.1 against a full pre-production SimpleSAMLphp
environment.

Fixed

• Removed LdapSinglePage. It could never construct: an ldap:Ldap
  subclass configured under any other authsource type (such as
  multiauthsinglepage:LdapSinglePage) fails, because
  SimpleSAML\Module\ldap\ConnectorFactory::fromAuthSource() asserts the
  authsource's configured type is literally "ldap:Ldap" — regardless of the
  PHP class hierarchy. Configure LDAP sources as plain ldap:Ldap;
  handleUserPassLogin() now always reaches login() through reflection
  (this was already the fallback for every other UserPassBase source).
• Raised the "skipping source" log for a source that fails to load from
  debug to warning, so a misconfiguration like the above is visible
  without turning on debug logging.