Set the correct URLs in the version return data

The URLs advertised in the data returned by keystone's '/' route default
to localhost and is not usable from off-host.  Not that anything in
DevStack uses it (yet).

Change-Id: I049789f568eff48c1abb0678c3ac0ae8a8960c64
Enable all notifications update from Nova for Ceilometer

This will allow Ceilometer to grab even more events about instances states
changes.

Change-Id: Ie28258607695caf96dcfa292cb74355aced85ccf
Merge "Set the correct URLs in the version return data"
Merge "Enable all notifications update from Nova for Ceilometer"