Dashboard navigation elements are not reachable via keyboard

[Doug Fish]

Guideline violated:
http://www.w3.org/TR/UNDERSTANDING-WCAG20/keyboard-operation-keyboard-operable.html

Testing technique:
Log in to Horizon and press the tab key repeatedly. Notice that top level navigation item (like Project, Admin, and Settings) are not reached, nor are 2nd level navigation items, like System Panel or Identity Panel.

How are we going to fix this?
The will likely involve adding a tabstop attribute or relevant html elements like a, button, or similar so that these areas are tabbable.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/145964

[OpenStack Infra (hudson-openstack)]

Change abandoned by David Lyle (<email address hidden>) on branch: master
Review: https://review.openstack.org/145964
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.

[Ivan Kolodyazhny (e0ne)]

We need to verify if it's still actual.