ondelete_cascade for Sites (currently just HRs, but probably need more),
Bufix ondelete_cascade, restore gis_location customisation to Syria
template for testing.
Upgrade jQueryUI to 1.10.4. Resize height of Modals which contain Modals.
Catch errors in s3translate, optimise s3translate, improve T parsability of
s3forms, fix asset/index