update basic_serializer to remove code to reset call pointer
use vector instead of set to track pointer and update data structure in call and result
update buffer_pool to better handle pool allocation
prepare io_runner to for low priority task io_service
server automatically remove disconnected session object
fix boost 1.57 build issue
replace std::remove_if algorithm which is not boost.move aware
solve error in example code
update boost path
add project files for vs2013
update readme
Merge branch 'develop'