Update changelog 
Update changelog 

* Merge from upstream.
  - Use any available extension plugins, unless one is explicitly
    configured.
  - Unregister the identity on disposable timeout (fixes a race condition).
* debian/rules
  - Remove architecture-specific patches (LP: #1237782)
* debian/patches
  - Remove all patches (no longer needed, given the upstream changes)


Distrotech/signon,Distrotech/signon,Distrotech/signon