Moves to locomotive platform.

Squashed commit of the following:

commit 719d2fac305399a193b88f2d30ecec92efeea431
Author: Victor Andrée <hej@victorandree.se>
Date:   Sun Feb 17 16:06:01 2013 +0100

    Log in through Persona restored.

    Since we're rolling our own stuff here, I'm not sure hwo we actually
    restrict access to pages later. It's probably quite simple to do with
    some kind of middleware before calling a controller.

commit 84b53a0a3f4122b6eca6129735ead00183f4f823
Author: Victor Andrée <hej@victorandree.se>
Date:   Sun Feb 17 15:14:16 2013 +0100

    Using Locomotive -- everyting except Auth works.