* Allow unix sockets (just needs some recognition of the format of
   args)

 * Extend test suite to run under multiple AnyEvent event loops, to
   give it a real compatiblity test.

 * Binary stats is not yet implemented.

 * Other hashing mechanisms. Consistent Hashing (patches welcome)

 * Implement cas/cas_multi/gets/gets_multi a la C::M::Fast.