Fixes #20: add an extra file for CouchDB to put uuid into

CouchDB will put the `uuid` into the 'last file in the configuration
chain' (see: https://issues.apache.org/jira/browse/COUCHDB-2064). Added
a file that will be last lexicographically (with name in upper case), so
the file managed by Chef won't be touched on every restart.
Looks so. If that suites your needs than do it (: The only moment with hostname is that this wouldn't work for multiple couches on the same server - just need to keep that in mind.