Neutron metering does not check overlapping ip range

[Liping Mao]

I use neutron metering api to create two same rules, I did not get any error. I think that I should get the error "MeteringLabelRuleOverlaps" defined in neutron/extensions/metering.py

BTW,
We define the following error inherit "NotFound", I think "Conflict" is better:

In neutron/extensions/metering.py

class MeteringLabelRuleOverlaps(qexception.NotFound):
    message = _("Metering label rule with remote_ip_prefix "
                "%(remote_ip_prefix)s overlaps another")

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/116652

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/116652
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=b0b7b66495a556af939cc62e02b8b60462232172
Submitter: Jenkins
Branch: master

commit b0b7b66495a556af939cc62e02b8b60462232172
Author: Liping Mao <email address hidden>
Date: Mon Aug 25 23:30:21 2014 +0800

    Neutron metering does not check overlap ip range

    Neutron does not return "MeteringLabelRuleOverlaps" error, when the
    remote ip ranges in the meter label rules are overlapped.

    Change-Id: I4c2536a7d38b5f6d311db365c8c108d5367705a7
    Closes-bug: #1361264