rxtx_factor should be validated as a float

[Dan Prince]

rxtx_factor is stored in the Nova DB as a float... but novaclient requires it to be an integer:

[root@nova1 ~]# nova flavor-create --ephemeral 0 --swap 0 --rxtx-factor=1.0 foo 99 256 10 1
    ERROR: rxtx_factor must be an integer.

We should update our validations for flavor/create so that rxtx_factor can be a float.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/16979

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/16979
Committed: http://github.com/openstack/python-novaclient/commit/27d7ad9d8632bdc67e25757a42a91109e393fbf9
Submitter: Jenkins
Branch: master

commit 27d7ad9d8632bdc67e25757a42a91109e393fbf9
Author: Dan Prince <email address hidden>
Date: Tue Nov 27 10:59:43 2012 -0500

    Validate that rxtx_factor is a float.

    Nova stores rxtx_factor as a float internally and as such
    novaclient should validate that a float is specified
    when creating a flavor.

    Fixes LP Bug #1083651.

    Change-Id: I75f9440d3fe2a0e72ea592f2259640623400ae73