Incorrect status in the notifier and missing a notifier when failed to create a volume

[Jenny Shieh]

There are 2 issues in the notifier of creating volume.

1. Incorrect 'creating' status in the notifier once the volume is created. The status should be 'available', not 'creating'.

2. There is no notifier when it fails to create a volume.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/32967

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/32967
Committed: http://github.com/openstack/cinder/commit/3deebeeb5045797c6ac97e9c34cbc42603296c37
Submitter: Jenkins
Branch: master

commit 3deebeeb5045797c6ac97e9c34cbc42603296c37
Author: jenny-shieh <email address hidden>
Date: Thu Jun 13 15:04:59 2013 -0700

    Update and add notifiers in create volume

    1. Change status from 'creating' to 'available' when the volume is created
    2. Add a notifier when it fails to create the volume

    Implements: notifiers for create volume
    Fixes: bug #1190754
    Change-Id: I3a7d118630b32cfa7efb6bc8984418ca9836764a