Advanced verion of devise_multi_tenant repository. In this app admin users can create tasks for other user, and view
all tasks associated with their organization. However, users with the 'user' role on only view tasks that are
associated with their user_id. Additionlly, users with 'user' role can only create tasks that are associated with
thier user_id, they cannot create tasks for other users (like users with 'admin' role can).