Fixes issue 241.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2134 44740490-163a-0410-bde0-09ae8108e29a

This patch implements support for sending responses to authentication
requests via the HTTP-Artifact binding. To enable, add
'saml20.sendartifact' => TRUE in saml20-idp-hosted metadata. The IdP
should then send HTTP-Artifact responses to SPs that request it.

Note that this requires a working memcache server.

Thanks to Danny Bollaert for implementing support for this.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2121 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2074 44740490-163a-0410-bde0-09ae8108e29a

This patch updates all metadata files to use the same format. It also
updates the examples in the documentation to match the actual files.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1835 44740490-163a-0410-bde0-09ae8108e29a

Also update the documentation to reflect these changes.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1653 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1414 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1399 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1397 44740490-163a-0410-bde0-09ae8108e29a