* Alter Discourse support to act as SSO provider.
Correct service group sync retry queueing.
* Correct default database enviroment variable names.
* Redirect to requested page after succesful login.
* Correct default redirect handling.
Correct attribute used to logout users on Discourse.
Improve logging messages to use parsed path on Discourse.
* Correct task retry syntax using bind=True.
Inherit from base exception so can catch TeamspeakErrors.
