CloudI DB Cassandra CQL Service
CloudI layer on top of erlcql from https://github.com/rpt/erlcql.git
NOTE: set service config count_process to desired pool size
erlcql_client results will be wrapped in cloudi:send_sync result:
{ok, ErlcqlClientResult}
As a result all successful responses from erlcql_client will be of the form
{ok, {ok, Response}}
All failures from erlcql_client will be of the form
{ok, {error, Reason}}
send_sync errors will be standard 'CloudI' errors