.
 add new unittest
 add log
 add middle server and fixbug of client, which nodelay was not enable
 change proto parse

ISSUE #40
 fixbug: when add check reserve and version check
 fixbug: if failed and some filed is required, weill failed
 add unittest
 make RpcClientChannel::Connect Close thread-safe
 add notity_map
 .
 remove lint
 move timestamp to ClientSession
 fixbug: peer may be put into epoll after it closed
 add flag for client_pump
 .