[fix] Return an error if the data is not stored, fixes #60
[fix] Return an error if the data is not stored, fixes #60

jkrems/memcached,mgetz/memcached,kbarbounakis/memcached,kbarbounakis/memcached,Starefossen/memcached,3rd-Eden/memcached,andrewbrereton/memcached,fouber/node-memcached,XadillaX/node-memcached,fouber/node-memcached,andrewbrereton/memcached,mgetz/memcached,3rd-Eden/memcached,acarrasco/node-memcached,mrlannigan/memcached,3rd-Eden/node-memcached,jolks/node-memcached,mrlannigan/memcached,3rd-Eden/node-memcached,mbrukman/node-memcache-client,acarrasco/node-memcached,XadillaX/node-memcached,Starefossen/memcached,jolks/node-memcached,mbrukman/node-memcache-client,jkrems/memcached