test boss_cache_adapter_ets

[cuongth]

In your CB app, you can enable ets cache to test now.

{cache_adapter, ets},
{ets_maxsize, 4194304}, %% 4*1024*1024
{ets_threshold, 0.85},
{ets_weight, 30}
{cache_enable, true},
%%    {cache_servers, [{"localhost", 11211, 1}]},
{cache_exp_time, 60},