Adds release notes for 1.0.5
Adds release notes for 1.0.5

* Bug fix for license text, CC-by rather than CC-by-sa:
(https://bugs.launchpad.net/openstack-manuals/+bug/1436515)
* Adds next and previous links on every page:
(https://bugs.launchpad.net/openstack-manuals/+bug/1423064)
* Adds Google Custom Search Engine rather than generic search form.
(https://bugs.launchpad.net/openstack-manuals/+bug/1431024)

Change-Id: I2bf956cd4a9031a8cf6575d4d4c7e1d78ba8cb66

openstack/openstackdocstheme,vauxoo-tests/vauxoodocstheme,openstack/openstackdocstheme,openstack/openstackdocstheme,openstack/openstackdocstheme,vauxoo-tests/vauxoodocstheme,vauxoo-tests/vauxoodocstheme