LBaas health_monitor'timeout shouldn't be -1

[shihanzhang]

It should to limit the value of timeout in health_monitor, the timeout shouldn't be -1, in extentions/loadbalancer.py, the define is:

        'timeout': {'allow_post': True, 'allow_put': True,
                    'convert_to': attr.convert_to_int,
                    'is_visible': True},

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/93851

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/93851
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=e02846cff4748f7df4d73fb0833fa3dbad1ccf9b
Submitter: Jenkins
Branch: master

commit e02846cff4748f7df4d73fb0833fa3dbad1ccf9b
Author: shihanzhang <email address hidden>
Date: Fri May 16 12:02:40 2014 +0800

    Disallow 'timeout' in health_monitor to be negative

    It should limit the value of 'timeout' in 'health_monitor', the 'timeout'
    shouldn't to be negative.

    Change-Id: I26ae1995c9cc362df7c7dda4c53fb8adda298d13
    Closes-bug: #1320062