041 migration script mucked up column types

[gordon chung]

sa.float should be sa.float(53) and sa.text should be sa.string(255) as it was originally

https://review.openstack.org/#/c/130869/21/ceilometer/storage/sqlalchemy/migrate_repo/versions/041_expand_event_traits.py

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/157549

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/157549
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=a047282b0acb5120ae9bc1e6063874919e5b8fbd
Submitter: Jenkins
Branch: master

commit a047282b0acb5120ae9bc1e6063874919e5b8fbd
Author: gordon chung <email address hidden>
Date: Thu Feb 19 17:06:02 2015 -0500

    correct column types in events

    in migration script, we incorrectly set string traits to Text and
    float traits to Float. this fixes it so they point to String(255)
    and Float(53) as they did originally

    Change-Id: Ie06781a42ec7384d88bea8498140e52f109e9f7e
    Closes-Bug: #1423710