HashTable: Include numItems in operator<<
HashTable: Include numItems in operator<<

Change-Id: I8db23da5ef7969ddc3b7cfde774fef7f8536e753
Reviewed-on: http://review.couchbase.org/84103
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Manu Dhundi <158873d90a7ef40f3637a222b7329c09d0222554@couchbase.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine