lib/janus/manager.rb
def unset_user(scope)
      janus_sessions.delete(scope.to_s)
      @users.delete(scope.to_sym) unless @users.nil?
    end
def unset_user(scope)
      janus_sessions.delete(scope.to_s)
      @users.delete(scope.to_sym) unless @users.nil?
    end
Manually removes the user without going throught the whole logout process.