Adding some comments to the C++ interface. Added few small utility functions to the C++ interface also.
Adding some comments to the C++ interface. Added few small utility functions
to the C++ interface also.

mckelvin/libmemcached,tony2001/libmemcached,mckelvin/libmemcached,mckelvin/libmemcached,tony2001/libmemcached,tony2001/libmemcached