[1.5.x] Ensured gis tests aren't run on non-gis Oracle
[1.5.x] Ensured gis tests aren't run on non-gis Oracle

Backpatch of b55de81b9e4d820a223c066022050a0df0ee1dd0

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