Update ICLA text.

* modules/openstack_project/files/gerrit/cla.html: This is the
current OpenStack Project Individual Contributor License Agreement
reformatted for HTML from the original "RevisedCLA.doc" with SHA1
sum 0467dd893d276cefde614e063a363b995d67e5ee provided by Jonathan
Bryce, Executive Director on behalf of The OpenStack Foundation on
Monday, January 7, 2013. No textual content was changed, except to
replace quote marks with their strict ASCII equivalents and add the
original LLC CLA text as a block quote at his direction.

Change-Id: I72bc6896b7c9babf7807f91b0458dbc1b0be66b3
Reviewed-on: https://review.openstack.org/19335
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Tested-by: Jenkins