Reformat the PHP authproc filter. Add a new 'function' option that allows to define an anonymous function. Deprecated the old 'code' function. Add tests.

Move the DatabaseTest to tests/lib/SimpleSAML/ where it belongs. Reformat code. Fix a few issues with phpdoc. Removed some unused variable. Use typed methos from SimpleSAML_Configuration instead of getValue().

INCPREFIX has been added in March 2008 and was already deprecated in June 2008, i.e. > 7 years ago.

Fix build: given that username and password are optional for some PDO drivers, do not enforce them to be set in the configuration. Use null as a default value for them.

Merge branch 'feature/pdometadata' of https://github.com/tdiscuit/simplesamlphp into tdiscuit-feature/pdometadata

Allow to specify which metadata sets to use in metarefresh. Can be configured either per set or per source.

* bug/issue230:
  No data about previous authentication is stored if authentication was not started at the SP (IdP-first flow). That makes the replay protection measures fail, leading to an ugly exception show to the user. Fix that.

  Additionally, give precedence to the RelayState configured in the local metadata, as the one received together with the SAML response may not even be an URL.

  This resolves #230.

add attributes from skolfederation.se/SIS