Squashed commit of the following:

commit 0c27ffa94834bc1148379af46737c7e15a3e2e4e
Author: Martin Brochhaus <mbrochh@gmail.com>
Date:   Wed Oct 30 09:42:26 2013 +0800

    CMS3 Migration Step3: Removing simple-translation model / changing templates

commit 934499dd8eabc5e774cbbf306f8e7989c781adf2
Author: Martin Brochhaus <mbrochh@gmail.com>
Date:   Sun Oct 27 15:43:41 2013 +0800

    CMS3 Migration Step2: Replacing simple-translation with hvad

commit 6159b7ad5775346c09785378d6930a015e6c0ad8
Author: Martin Brochhaus <mbrochh@gmail.com>
Date:   Sun Oct 27 14:00:18 2013 +0800

    CMS3 Migration Step 1: Getting rid of M2MPlaceholderField and Admin
Migration to django-cms 3 compatibility

- Removed M2MPlaceholderField (and admin)
- No longer using simple-translation but django-hvad

See blog post http://martinbrochhaus.com/djangocms3.html