[docs] Improper link in 4.0 release notes

[Micah Ashford]

http://docs.mirantis.com/openstack/fuel/fuel-4.0/release-notes.html

Section:

"New Features in Mirantis OpenStack 4.0

Mirantis OpenStack hardened packages support the latest stable OpenStack Havana maintenance release

The OpenStack core projects in the Mirantis OpenStack hardened packages support the OpenStack Havana 2013.2.1 release. Fuel will deploy this version of OpenStack on CentOS or Ubuntu. For Red Hat Enterprise Linux OpenStack Platform (RHEL-OSP), Fuel will deploy RHEL-OSP version 3.0, which is based on Grizzly."

Hyperlink for "OpenStack Havana 2013.2.1" points to http://tracker.ceph.com/issues/5426

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/4.0
Review: https://review.openstack.org/111420

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/111420
Committed: https://git.openstack.org/cgit/stackforge/fuel-docs/commit/?id=f1109703e2cce296bdbcf0ff8655e152ea583848
Submitter: Jenkins
Branch: stable/4.0

commit f1109703e2cce296bdbcf0ff8655e152ea583848
Author: Meg McRoberts <email address hidden>
Date: Wed Jul 30 20:49:02 2014 -0700

    Fix broken link to Havana 2013.2.1 Release Notes

    Change-Id: I34ebab4dd6c2aff8ebb3ff6bdca56adc2e6afdda
    Closes-Bug: 1342435