Update notes for submitted changes

* Add package install support to neutron
Update notes for submitted changes

* Add package install support to keystone
Update notes for submitted changes

* Install keystone-manage into /usr/local/bin
Update notes for submitted changes

* Add package install support to horizon
Update notes for submitted changes

* Add package install support to heat
Update notes for submitted changes

* Install heat-manage into /usr/local/bin
Update notes for submitted changes

* Add package install support to glance
Update notes for submitted changes

* Install glance-manage into /usr/local/bin