-o modern now conditionally sets slab chunk max
-o modern now conditionally sets slab chunk max

uses 0.5m default instead of 16k. I cannot find any drawbacks with using this,
aside from exercising the large item size code for objects > .5m.

bpzhang/memcached,rmccullagh/memcached,elfchief/memcached,rmccullagh/memcached,memcached/memcached,guikcd/memcached,memcached/memcached,elfchief/memcached,memcached/memcached,gencer/memcached,guikcd/memcached,dormando/memcached,bpzhang/memcached,bpzhang/memcached,dormando/memcached,gencer/memcached,rmccullagh/memcached,gencer/memcached,rmccullagh/memcached,dormando/memcached,elfchief/memcached,guikcd/memcached,memcached/memcached,elfchief/memcached,rmccullagh/memcached,gencer/memcached,bpzhang/memcached,guikcd/memcached,memcached/memcached,dormando/memcached,guikcd/memcached,elfchief/memcached,dormando/memcached,gencer/memcached