Replace role::cache::ssl::wikimedia with an SNI capable role::cache::ssl::misc

protoproxy::localssl should now support multiple sites with SNI.
role::cache::ssl::misc is a new role class that sets up the sites
needed for the misc-web SSL/caching cluster.

Also, let's use the full domain name for site names now. We may
not always only have .org...

Change-Id: Iffde3305bd972b7a8780ffabcc31b6a57aafe4db