[1.6.x] Re-added link to SQLite notes from DB section of install doc.
[1.6.x] Re-added link to SQLite notes from DB section of install doc.

67f5dffbec from master.

redhat-openstack/django,felixjimenez/django,dex4er/django,felixjimenez/django,redhat-openstack/django,felixjimenez/django,django-nonrel/django,felixjimenez/django,django-nonrel/django,django-nonrel/django,dex4er/django,redhat-openstack/django,django-nonrel/django,redhat-openstack/django,dex4er/django