添加CoreData一个参数，支持在Debug时将sql语句输出到控制台！

2014-09-04 00:43:36.736 CRMManager[34352:613] CoreData: sql: SELECT 0,
t0.Z_PK, t0.Z_OPT, t0.ZCDHOPE, t0.ZCUSTOMERID, t0.ZCUSTOMERNAME,
t0.ZCUSTOMERTYPE, t0.ZIDNUM, t0.ZMOBILE, t0.ZSEX, t0.ZBELONGMANAGER,
t0.ZBIRTHREMIND, t0.ZBUSINESS FROM ZCUSTOMER t0 JOIN ZMANAGERUSER t1 ON
t0.ZBELONGMANAGER = t1.Z_PK WHERE ( t0.ZCUSTOMERID = ? AND  t1.ZUSERID
= ?)