Column and Cell don't inherit from HTMLElement

[Gabriel Hurley]

Because Column and Cell don't inherit from HTMLElement, they have different and arbitrary interfaces which makes them harder to work with and harder to customize.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/5586

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/5586
Committed: http://github.com/openstack/horizon/commit/8a10e8a5f9e83411dc2008639a6900f9ee6ee904
Submitter: Jenkins
Branch: master

commit 8a10e8a5f9e83411dc2008639a6900f9ee6ee904
Author: Gabriel Hurley <email address hidden>
Date: Tue Mar 20 13:49:38 2012 -0700

    Handle custom column classes; inherit from HTMLElement.

      * Fixes bug 960588, allowing custom (and mixed) column classes
        to be handled appropriately in the table metaclass.
      * Reworks Column and Cell to inherit from HTMLElement, making
        them both more consistent and easier to customize.
        Fixes bug 960590.

    Change-Id: I88ec6d8d66703f11c508b4c10af439e3b732b3ce