[install-guide] [yum] install ceilometermiddleware on swift-proxy node
[install-guide] [yum] install ceilometermiddleware on swift-proxy node

Workaround for https://bugzilla.redhat.com/show_bug.cgi?id=1214928.

Partially implements bp installguide-kilo.

Change-Id: Idc6efc4e90f9bc63a632e1d4b4f07885716b1099

Akasurde/openstack-manuals,potsmaster/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,kairoaraujo/openstack-manuals,gongysh2004/openstack-manual,openstack/openstack-manuals,Akasurde/openstack-manuals,openstack/openstack-manuals,gongysh2004/openstack-manual,kairoaraujo/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,saeki-masaki/openstack-manuals,openstack/openstack-manuals,saeki-masaki/openstack-manuals,potsmaster/openstack-manuals