[PATCH 1/2] tests: Replace 'force_login' with 'login'

[Stephen Finucane]

On Fri, 2016-12-23 at 19:43 +0000, Stephen Finucane wrote:
> The former is only available in Django 1.9+.
> 
> Signed-off-by: Stephen Finucane <stephen at that.guru>
> Fixes: ed5e93242 ("tests: Add rudimentary pagination tests")

Quick merge to fix the tests.