New 2.7.0 version

Merge pull request SAML-Toolkits#93 from samlev/logoutCallback

Added 'delete session' callback option

Release 2.6.0 version

Version 2.5.0

Release v2.4.0

Release version 2.3.0

Create new 2.2.0 version

Update composer version

Fix SAML-Toolkits#32. Minor bug reported by Max-Kolodezniy

Merge pull request SAML-Toolkits#9 from jimpsson/master

Fixing demo issues