NAME CHANGE

This could possibly conflict with existing cloud-install packages.
Recommended to `apt-get remove cloud-install*`. Package is now
named `openstack` providing `openstack-install` and `openstack-status`.

For easier transition we've made cloud-install* metapackages in
order to do 'the right thing' if users are still installing via
`apt-get install cloud-installer`

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>