Rewrite memchached-tool 'dump' method to use new lru_crawler interface.
Rewrite memchached-tool 'dump' method to use new lru_crawler interface.

dormando/memcached,memcached/memcached,memcached/memcached,dormando/memcached,memcached/memcached,dormando/memcached,dormando/memcached,memcached/memcached,dormando/memcached,memcached/memcached