stack delete fails with neutron router

[Removed by request]

Deleting a stack would fail when trying to delete a neutron router.
Tested on Juno (heat --version = 0.2.12)
get the templates from here:

https://raw.githubusercontent.com/cmyster/templates/master/juno_test_template.yaml
https://raw.githubusercontent.com/cmyster/templates/master/lb_server.yaml

To reproduce:

heat stack-create somestackname -f juno_test_template.yaml (I changed the fedora image inside to point at something newer)

wait for it to finish

heat stack-delete somestackname

Deletion will fail here because the router could not be deleted and neutron returns a 409 error when trying to delete it (manually as well)

The proper way to delete the router in this case is:

neutron router-list (get the router UUID)
neutron router-port-list $router-UUID (to get the ports UUID)
for each port UUID do
neutron router-interface-delete $router-UUID $port-UUID
and lastly do
neutron router-delete $router-UUID
After this, re-run stack-delete and it will be removed successfully.

[Removed by request (removed3381998)]

On a retest, one can also delete by first doing neutron floatingip-list and for each do floatingip-delete and then run neutron router-gateway-clear router-uuid. stack-delete after this point will delete the stack.