Fix bug due to changes in extra views

commit c7c6b04913abc6d5ef1a6cfa97079f7d1b522e73
Author: aibon <me@a1b0n.com>
Date:   Wed Feb 20 01:36:10 2013 +0100

    Fix bug die to changes in extra views
 Fix missing access_fn in Dashboard navigation

commit b8b899537c6fc3fc48c7b977be05bbd8e62337ca
Author: aibon <me@a1b0n.com>
Date:   Thu Feb 21 17:07:50 2013 +0100

    Update oscar/apps/dashboard/nav.py

commit 0ef1c841a57f5533c35fb52ddf9ae9fa7e8f72bb
Author: aibon <me@a1b0n.com>
Date:   Thu Feb 21 16:59:38 2013 +0100

    Fix access_fn in Dashbiard navigation
Add company name to AbstractAddress. Lazy fix, don't want to subclass 5 models based on this.

commit e7b676a0fb3061f393fd0385a22bb12af5946711
Author: aibon <me@a1b0n.com>
Date:   Sat Feb 23 01:04:18 2013 +0100

    Add company name to AbstractAddress. Lazy fix

commit 3950acb0069172ca7c99f81cdd46199442957d14
Author: aibon <me@a1b0n.com>
Date:   Sat Feb 23 00:49:27 2013 +0100

    Add company name to AbstractAddress. Lazy fix

commit d37875cdddf91a4239f96b29510443627e6cdfa4
Author: aibon <me@a1b0n.com>
Date:   Fri Feb 22 23:06:32 2013 +0100

    Add company name to AbstractAddress. Lazy fix

commit ee43d6fbdb51ee48ab5c4fe850db10d67d9f06f1
Author: aibon <me@a1b0n.com>
Date:   Fri Feb 22 22:44:35 2013 +0100

    Add company name to AbstractAddress. Lazy fix for.

commit 0ef1c841a57f5533c35fb52ddf9ae9fa7e8f72bb
Author: aibon <me@a1b0n.com>
Date:   Thu Feb 21 16:59:38 2013 +0100

    Fix access_fn in Dashbiard navigation