In keeping with our decision in Austin to start appending ordinal
suffixes to hostnames for new server instances, switch the node
definition for wiki.openstack.org to allow a new
wiki01.openstack.org to match. The production server has Puppet
temporarily disabled, and the FQDN hiera keys have already been
moved to a new "wiki" group file.
As a requirement for this work, also purge remaining "FQDNisms" from
the openstack_project::wiki class by making the site name a classvar
and removing redundant SSL filenames which now merely mirror the
defaults in the mediawiki module anyway.
Change-Id: I950cb68ecd34e82f0da6b10bf2b93fb2c349286f
f65cef27fe