Gracefully handle not having python-memcached installed
Gracefully handle not having python-memcached installed

ralphbean/moksha,lmacken/moksha,ralphbean/moksha,pombredanne/moksha,mokshaproject/moksha,lmacken/moksha,pombredanne/moksha,mokshaproject/moksha,lmacken/moksha,pombredanne/moksha,mokshaproject/moksha,ralphbean/moksha,pombredanne/moksha,mokshaproject/moksha