Updated release notes on app_label.

Django determines automatically which application models belong to,
provided the application can be imported without importing models.

docs/ref/models/options.txt

@@ -33,7 +33,7 @@ Available ``Meta`` options
     .. versionadded:: 1.7
 
         ``app_label`` is no longer required for models that are defined
-        in a ``models`` package within an app.
+        outside the ``models`` module of an application.
 
 ``db_table``
 ------------
@@ -81,7 +81,7 @@ Django quotes column and table names behind the scenes.
 
        db_table = '"name_left_in_lowercase"'
 
-   Such quoted names can also be used with Django's other supported database 
+   Such quoted names can also be used with Django's other supported database
    backends; except for Oracle, however, the quotes have no effect. See the
    :ref:`Oracle notes <oracle-notes>` for more details.
 

docs/releases/1.7.txt

@@ -466,9 +466,6 @@ Models
   ``Meta`` option allows you to customize (or disable) creation of the default
   add, change, and delete permissions.
 
-* :attr:`~django.db.models.Options.app_label` is no longer required for models
-  that are defined in a ``models`` package within an app.
-
 * Explicit :class:`~django.db.models.OneToOneField` for
   :ref:`multi-table-inheritance` are now discovered in abstract classes.