Fix basic operation when APR is compiled with pool debugging.   When pool debugging is active, pool->allocator is NULL, because malloc/free are used directly by APR
Fix basic operation when APR is compiled with pool debugging.   When pool debugging is active, pool->allocator is NULL, because malloc/free are used directly by APR


git-svn-id: 683495cb1553624b05a54e2ba9533425f69cf277@1285 61a7d7f5-40b7-0310-9c16-bb0ea8cb1845

coapp-packages/serf,coapp-packages/serf,coapp-packages/serf