slab rebalance really needs to default to off
slab rebalance really needs to default to off

Reviewed By: sgrimm
Test Plan: mc078.sf2p



git-svn-id: d16fc8af3894fe4b8f00d9e752b9e158f74a7d75@65925 2c7ba8d8-a2f7-0310-a573-de162e16dcc7

sysalexis/memcached,sysalexis/memcached,sysalexis/memcached,sysalexis/memcached,sysalexis/memcached