fb
add doc
add requirements section of doc
more subtle process control
add msgpack example
add multi request handling support
add api path config
add wrapper for client (send -> recv)
add example: configure center
update app template
add json config support
add phar support
update
add success/failed log method
minor modified
replace self-made array map with splobjectstorage
update serverbench.phar
make worker max load configable
add timer to serverbench's ev loop
add worker_load_max to config template