neutron_floatingip handler misses floating IP addresses which are directly deleted

[Simon Pasquier]

With Neutron there is 2 ways to remove a floating IP address from a port:
1/ neutron floatingip-disassociate <uuid>
2/ neutron floatingip-delete <uuid>

Case 2/ isn't managed correctly by the neutron_floatingip handler, leaving orphaned records in the DB.

Example of notification generated by neutron in that case:
{u'_context_roles': [u'Member', u'anotherrole'], u'_context_request_id': u'req-e905e3d8-7c3b-4d0b-a5aa-7c0f14b0b9df', u'_context_read_deleted': u'no', u'event_type': u'floatingip.delete.start', u'_context_user_name': u'demo', u'_context_project_name': u'demo', u'timestamp': u'2014-01-17 11:30:41.456481', u'_context_tenant_name': u'demo', u'_context_tenant': u'a84efb332b0a46e5bfc1805575b00acd', u'message_id': u'9d30a752-5121-4cf0-bce4-86c2260dbbbc', u'_unique_id': u'8eca7bd4402c44449123f0b20eda2c2d', u'_context_is_admin': False, u'_context_timestamp': u'2014-01-17 11:30:41.452922', u'_context_project_id': u'a84efb332b0a46e5bfc1805575b00acd', u'_context_tenant_id': u'a84efb332b0a46e5bfc1805575b00acd', u'_context_user': u'5e0e5ccd874044ff9f5eb9017bf9be5e', u'_context_user_id': u'5e0e5ccd874044ff9f5eb9017bf9be5e', u'publisher_id': u'network.i-00000cac', u'payload': {u'floatingip_id': u'f38ff2b6-cd4d-433e-8a9c-9e00dfc05b1e'}, u'priority': u'INFO'}

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/68117

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/68117
Committed: https://git.openstack.org/cgit/stackforge/designate/commit/?id=8d59ad9d0b562bc8cbd9c80e65f944ffd34fff47
Submitter: Jenkins
Branch: master

commit 8d59ad9d0b562bc8cbd9c80e65f944ffd34fff47
Author: Endre Karlson <email address hidden>
Date: Tue Jan 21 12:08:07 2014 +0100

    Sink - Delete record on floatingip.delete event

    Closes-Bug: #1270124

    Change-Id: I1f1b9be771815cb089189b52a4f6ab7f3e19279a