fix
use hash map to store sockets
use only one map to store sockets, need to test on two machines
use hash map to store buffers, delte strand, successfully run on two machines
remove HEADER_SIZE
fix a bug of async_read_some, now need to rewrite the send_func and member functions of StreamBuffer
fix a bug of async_read_some, now need to rewrite the send_func and member functions of StreamBuffer
change the structure of send buffers
Merge pull request #2 from hjk41/edison

Edison