IPC FW3.0 |modify document| modify document for sdk_server;
Description: add algorithm for insert pack into stream buffer ,and copy-on-write for conflict with sdk_server stream sending;
Risk: low;
Affected Module: sdk_server;
Test: no;
Code Review: wrc;

git-svn-id: https://192.168.0.21/svn/ipc_fw3.x_core/branches/20131125@1362 dd879d07-adaa-4757-b7d0-008d00b626b4