[ADD] initial elfox core.
[UPDATE] cjon.
[UPDATE] http, has no fixed bug: curl_easy_perform response slowly.
[UPDATE] fix http post delay bug, wirte function should return right size.
[UPDATE] http.
[UPDATE] test http.
[UPDATE] test http.
[UPDATE] test http.
[UPDATE] oid generation algorithm.
[FIX] variable arguments in log.
[ADD] directory operations.
[ADD] environment variable.
[MOD] add typedef `id_map`.
[MOD] oid map.
[MOD] rand algorithm.
[MOD] close invalid peer.
[MOD] log peer info.
[MOD] db.
[MOD] fix event trigger.
[MOD] add Object::Size().