Remove deprecated app name overriding documentation from README
Remove deprecated app name overriding documentation from README

The code is still here since we are still using it, will remove
later after syncing templates with django 1.8.

IMAmuseum/django-admin-bootstrapped,xrmx/django-admin-bootstrapped,django-admin-bootstrapped/django-admin-bootstrapped,merlian/django-admin-bootstrapped,pombredanne/django-admin-bootstrapped,benthomasson/django-admin-bootstrapped,kevingu1003/django-admin-bootstrapped,sn0wolf/django-admin-bootstrapped,Corner1024/django-admin-bootstrapped,squallcs12/django-admin-bootstrapped,bformet/django-admin-bootstrapped,benthomasson/django-admin-bootstrapped,django-admin-bootstrapped/django-admin-bootstrapped,bformet/django-admin-bootstrapped,benthomasson/django-admin-bootstrapped,pombredanne/django-admin-bootstrapped,jmagnusson/django-admin-bootstrapped,xrmx/django-admin-bootstrapped,askinteractive/mezzanine-advanced-admin-new,kevingu1003/django-admin-bootstrapped,merlian/django-admin-bootstrapped,andrewyager/django-admin-bootstrapped,sn0wolf/django-admin-bootstrapped,sn0wolf/django-admin-bootstrapped,askinteractive/mezzanine-advanced-admin-new,askinteractive/mezzanine-advanced-admin-new,andrewyager/django-admin-bootstrapped,IMAmuseum/django-admin-bootstrapped,pombredanne/django-admin-bootstrapped,merlian/django-admin-bootstrapped,jmagnusson/django-admin-bootstrapped,jmagnusson/django-admin-bootstrapped,Corner1024/django-admin-bootstrapped,askinteractive/mezzanine-advanced-admin,bformet/django-admin-bootstrapped,mynksngh/django-admin-bootstrapped,kevingu1003/django-admin-bootstrapped,xrmx/django-admin-bootstrapped,mynksngh/django-admin-bootstrapped,mynksngh/django-admin-bootstrapped,Corner1024/django-admin-bootstrapped,askinteractive/mezzanine-advanced-admin,django-admin-bootstrapped/django-admin-bootstrapped,squallcs12/django-admin-bootstrapped,squallcs12/django-admin-bootstrapped,askinteractive/mezzanine-advanced-admin,IMAmuseum/django-admin-bootstrapped,andrewyager/django-admin-bootstrapped