Fixed the installation docs asking to add 'publisher' to installed ap…

…ps, this app does not exist anymore (in it's old form) and is no longer required to be in installed apps. thanks to Ionel Maries Cristian for pointing this out

docs/getting_started/tutorial.rst

@@ -78,10 +78,6 @@ There is even more plugins available on django CMS `extensions page`_.
 
 .. _extensions page: http://www.django-cms.org/en/extensions/
 
-If you wish to use the moderation workflow, also add:
-
-* ``'publisher'``
-
 Further, make sure you uncomment (enable) ``'django.contrib.admin'``
 
 You might consider using `django-filer`_ with `django CMS plugin`_ and its