thin, fast, full interface to the libmemcached client API

 Memcached::libmemcached is a very thin, highly efficient, wrapper around the
 libmemcached library. It's implemented almost entirely in C.
 .
 It gives full access to the rich functionality offered by libmemcached.
 libmemcached is fast, light on memory usage, thread safe, and provide full
 access to server side methods.
 .
  - Synchronous and Asynchronous support.
 .
  - TCP and Unix Socket protocols.
 .
  - A half dozen or so different hash algorithms.
 .
  - Implementations of the new cas, replace, and append operators.
 .
  - Man pages written up on entire API.
 .
  - Implements both modulo and consistent hashing solutions.