因为易崩而弃用lz4

1、发现使用lz4压缩库时监控端程序进行远程桌面操作时容易崩溃，原因不明。

2、修复内存泄漏缺陷，在throw "Bad Buffer"的情况需要释放申请的内存。

client/IOCPClient.cpp

@@ -253,6 +253,8 @@ VOID IOCPClient::OnServerReceiving(char* szBuffer, ULONG ulLength)
 				}
 				else{
 					printf("[ERROR] uncompress failed \n");
+					delete [] CompressedBuffer;
+					delete [] DeCompressedBuffer;
 					throw "Bad Buffer";
 				}