JCBC-397: Adding INFO-level config output on init.

This changeset prints info-level output on initialization, making
it easier to report and debug issues when they show up in logs.

Change-Id: I12cb58cded7ef106cf727c1eeab93101024d3c56
Reviewed-on: http://review.couchbase.org/31667
Reviewed-by: Michael Nitschinger <michael.nitschinger@couchbase.com>
Tested-by: Michael Nitschinger <michael.nitschinger@couchbase.com>