[1.5.X] Added details on minified jQuery and DEBUG mode for contrib.admin.
[1.5.X] Added details on minified jQuery and DEBUG mode for contrib.admin.

Thanks Daniele Procida.

Backport of 4720117a31 from master

bliti/django-nonrel-1.5,alx-eu/django,hasadna/django,imtapps/django-imt-fork,ccn-2m/django,imtapps/django-imt-fork,alx-eu/django,ccn-2m/django,imtapps/django-imt-fork,alx-eu/django,hasadna/django,ccn-2m/django,ccn-2m/django,bliti/django-nonrel-1.5,bliti/django-nonrel-1.5,alx-eu/django,hasadna/django