Updated xmemcached to 1.4.0
Updated xmemcached to 1.4.0

amuzhou/simple-spring-memcached,zhaoshengbo/simple-spring-memcached,amuzhou/simple-spring-memcached,ragnor/simple-spring-memcached,ragnor/simple-spring-memcached,zhaoshengbo/simple-spring-memcached