[dashboard] configuration isn't compatible with apache 2.4

[Doug Fish]

After converging a node with apache 2.4, Horizon won't run. The following error is in the apache log:
* httpd[24869]: AH00526: Syntax error on line 30 of /etc/httpd/sites-enabled/openstack-dashboard.conf:
* httpd[24869]: Invalid command 'Order', perhaps misspelled or defined by a module not included in the server configuration
* systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE

It seems that the apache configuration is only correct for earlier versions. Specifically, in dash-site.erb
  Order allow,deny
  Allow from all
needs to be changed to
  Require all granted

I don't see any other problems with the config file for apache 2.4.
http://httpd.apache.org/docs/2.4/upgrading.html

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/147950

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/147950
Committed: https://git.openstack.org/cgit/stackforge/cookbook-openstack-dashboard/commit/?id=7886c81a749c4aee3deaa6f751880e0eb05db1ad
Submitter: Jenkins
Branch: master

commit 7886c81a749c4aee3deaa6f751880e0eb05db1ad
Author: Mark Vanderwiel <email address hidden>
Date: Fri Jan 16 12:46:52 2015 -0600

    Fix site directory defaults for apache 2.4

    With the 2.4 release the site config for directies was changed as
    noted in the bug link. If necessary, in the future we could create
    a list attribute to hold the directory options to allow them to be
    overrideable, but no one has asked for that yet. This could also
    use the apache cookbook web_app provider to create this site config.
    Also cleaned up some minor formatting in the specs.

    Change-Id: Ie2b323ac055ae03b3c4ebb28b70aca65745df842
    Closes-Bug: #1411772

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/cookbook-openstack-dashboard ocata-eol release.