add tests for config_name param pass-thru (failing)
obsolete confirm_success_url, reset_password_redirect_url, all tests pass
implement authenticate_user!, user_signed_in?, current_user, authenticate_group!, group_signed_in?, current_group for multiple models
[wip] [bugfixes]
update readme for multiple model support
readme [wip]
v0.1.28.beta7
[bugfix] v0.1.28.beta8