v2.4.0

 ## Changed
- Merge upstream changes from original repo into this fork
- Revert changes made to the handler as they are not needed
- Extend SessionStore to return all sessions

 ## Fixed
- Use the right ID when deleting session on logout

Merge pull request #3 from cloudogu/feature/forwardWithoutBasicAuth

Forward requests without basic auth

Revert "Get cache only once"

This commit led to authenticationResponse beeing nil if not in cache

This reverts commit f9d691d.

Merge pull request #1 from cloudogu/feature/request_cache

REST request cache

v2.1.0

Add proper `func(http.Handler) http.Handler` middleware function.

Thanks to @shenshouer

gopkg.in/cas.v2: v2.0.0

Remove global *http.request maps in favor of request contexts.

This has justified a new major release as the project now depends on the stdlib "context" package.

gopkg.in/cas.v1: v1.2.0

Allow configuration of sending the current URL to the CAS service on logout.

This is considered a non-breaking change as existing behaviour is maintained, a new field of a named exported struct has been added.

gopkg.in/cas.v1: v1.1.1

Additional logging when unable to validate a provided service ticket.

This is considered a non-breaking change as only logging has been altered.