The current OpenStackID servers have hostnames matching the names of
their Web site vhosts in Apache. Their replacements will have
different hostnames/server instance names but should retain their
original Web site identities. To facilitate this, explicitly pass in
the expected hostnames for the corresponding class parameters which
normally default to $::fqdn in the puppet-openstackid module.
Change-Id: I395626ee11e287dac5766f4027a067e2c918a9ed
cf53072d7d