updated navigation: reordered and added blog
updated navigation: reordered and added blog

fixes #28
jtokar/ovirt-site,jtokar/ovirt-site,thatdocslady/ovirt-site,thatdocslady/ovirt-site,rafaelmartins/ovirt-site,jtokar/ovirt-site,rafaelmartins/ovirt-site,thatdocslady/ovirt-site,rafaelmartins/ovirt-site,jtokar/ovirt-site,rafaelmartins/ovirt-site,thatdocslady/ovirt-site